Convert CONFIG_CMD_IMMAP to Kconfig

This converts the following to Kconfig:
   CONFIG_CMD_IMMAP

Also move this command out of the cmd/ directory since it is
PowerPC-specific.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/canmb_defconfig b/configs/canmb_defconfig
index 1f6f18d..87eb205 100644
--- a/configs/canmb_defconfig
+++ b/configs/canmb_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC5xxx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_CANMB=y
 CONFIG_BOOTDELAY=5
 CONFIG_CMD_ASKENV=y
diff --git a/configs/kmcoge4_defconfig b/configs/kmcoge4_defconfig
index 5d274fa..493d971 100644
--- a/configs/kmcoge4_defconfig
+++ b/configs/kmcoge4_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC85xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KMP204X=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
diff --git a/configs/kmcoge5ne_defconfig b/configs/kmcoge5ne_defconfig
index 233943c..31cad02 100644
--- a/configs/kmcoge5ne_defconfig
+++ b/configs/kmcoge5ne_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KM8360=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmeter1_defconfig b/configs/kmeter1_defconfig
index d92e6b2..bb8a0fe 100644
--- a/configs/kmeter1_defconfig
+++ b/configs/kmeter1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KM8360=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmlion1_defconfig b/configs/kmlion1_defconfig
index 287ca8c..56c5a8f 100644
--- a/configs/kmlion1_defconfig
+++ b/configs/kmlion1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC85xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KMP204X=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
diff --git a/configs/kmopti2_defconfig b/configs/kmopti2_defconfig
index 0b112ff..9e9c0b9 100644
--- a/configs/kmopti2_defconfig
+++ b/configs/kmopti2_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_TUXX1=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmsupx5_defconfig b/configs/kmsupx5_defconfig
index ba02124..5235530 100644
--- a/configs/kmsupx5_defconfig
+++ b/configs/kmsupx5_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_TUXX1=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmtegr1_defconfig b/configs/kmtegr1_defconfig
index 16b7b18..464a125 100644
--- a/configs/kmtegr1_defconfig
+++ b/configs/kmtegr1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_SUVD3=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmtepr2_defconfig b/configs/kmtepr2_defconfig
index 3f73346..ca64a6e 100644
--- a/configs/kmtepr2_defconfig
+++ b/configs/kmtepr2_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_TUXX1=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/kmvect1_defconfig b/configs/kmvect1_defconfig
index 8b9180b..04a3e48 100644
--- a/configs/kmvect1_defconfig
+++ b/configs/kmvect1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_SUVD3=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/mgcoge3ne_defconfig b/configs/mgcoge3ne_defconfig
index d66fffe..0d4a1e1 100644
--- a/configs/mgcoge3ne_defconfig
+++ b/configs/mgcoge3ne_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC8260=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KM82XX=y
 CONFIG_FIT=y
 CONFIG_OF_BOARD_SETUP=y
diff --git a/configs/mgcoge_defconfig b/configs/mgcoge_defconfig
index c9f07d1..f4f8ae5 100644
--- a/configs/mgcoge_defconfig
+++ b/configs/mgcoge_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC8260=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_KM82XX=y
 CONFIG_FIT=y
 CONFIG_OF_BOARD_SETUP=y
diff --git a/configs/motionpro_defconfig b/configs/motionpro_defconfig
index ab9ea81..5521e6d 100644
--- a/configs/motionpro_defconfig
+++ b/configs/motionpro_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC5xxx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_MOTIONPRO=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/munices_defconfig b/configs/munices_defconfig
index ddd5c43..0e2b188 100644
--- a/configs/munices_defconfig
+++ b/configs/munices_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC5xxx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_MUNICES=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_BOOTDELAY=5
diff --git a/configs/suvd3_defconfig b/configs/suvd3_defconfig
index 68fee8c..68cfe65 100644
--- a/configs/suvd3_defconfig
+++ b/configs/suvd3_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_SUVD3=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/tuge1_defconfig b/configs/tuge1_defconfig
index a5579e4..3cb1404 100644
--- a/configs/tuge1_defconfig
+++ b/configs/tuge1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_TUXX1=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
diff --git a/configs/tuxx1_defconfig b/configs/tuxx1_defconfig
index 519472f..18b124a 100644
--- a/configs/tuxx1_defconfig
+++ b/configs/tuxx1_defconfig
@@ -1,5 +1,6 @@
 CONFIG_PPC=y
 CONFIG_MPC83xx=y
+CONFIG_CMD_IMMAP=y
 CONFIG_TARGET_TUXX1=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y