Correct defconfigs using savedefconfig

Update the defconfig files to match their canonical form, as produced by
'make safedefconfig'.

This is the result of running 'tools/moveconfig.py -s' on the tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index 9494860..0849cbb 100644
--- a/configs/am43xx_hs_evm_defconfig
+++ b/configs/am43xx_hs_evm_defconfig
@@ -2,7 +2,7 @@
 CONFIG_AM43XX=y
 CONFIG_TI_SECURE_DEVICE=y
 CONFIG_TARGET_AM43XX_EVM=y
-CONFIG_ISW_ENTRY_ADDR=0x403018e0
+CONFIG_ISW_ENTRY_ADDR=0x40302ae0
 CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"
 CONFIG_SPL=y
diff --git a/configs/gwventana_defconfig b/configs/gwventana_defconfig
index 71f2d50..7cf5cf5 100644
--- a/configs/gwventana_defconfig
+++ b/configs/gwventana_defconfig
@@ -2,6 +2,7 @@
 CONFIG_ARCH_MX6=y
 CONFIG_TARGET_GW_VENTANA=y
 CONFIG_SPL_STACK_R_ADDR=0x18000000
+CONFIG_DM_SERIAL=y
 CONFIG_SPL=y
 CONFIG_SPL_STACK_R=y
 CONFIG_FIT=y
diff --git a/configs/tb100_defconfig b/configs/tb100_defconfig
index 6dc2242..cd74631 100644
--- a/configs/tb100_defconfig
+++ b/configs/tb100_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARC=y
 CONFIG_TARGET_TB100=y
 CONFIG_SYS_CLK_FREQ=500000000
+CONFIG_DM_SERIAL=y
 CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="abilis_tb100"
 CONFIG_BOOTDELAY=3