Kconfig: Convert CONFIG_IMX_WATCHDOG to Kconfig

Move this option to Kconfig and tidy up the config file of eight
boards which use it.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
diff --git a/configs/aristainetos2_defconfig b/configs/aristainetos2_defconfig
index 5044a59..c55e39c 100644
--- a/configs/aristainetos2_defconfig
+++ b/configs/aristainetos2_defconfig
@@ -50,4 +50,5 @@
 CONFIG_USB_STORAGE=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/aristainetos2b_defconfig b/configs/aristainetos2b_defconfig
index 6641382..95c30632 100644
--- a/configs/aristainetos2b_defconfig
+++ b/configs/aristainetos2b_defconfig
@@ -50,4 +50,5 @@
 CONFIG_USB_STORAGE=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/aristainetos_defconfig b/configs/aristainetos_defconfig
index 6a31ee6..4082b12 100644
--- a/configs/aristainetos_defconfig
+++ b/configs/aristainetos_defconfig
@@ -49,4 +49,5 @@
 CONFIG_USB_STORAGE=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/dh_imx6_defconfig b/configs/dh_imx6_defconfig
index 2cb7164..92b2377 100644
--- a/configs/dh_imx6_defconfig
+++ b/configs/dh_imx6_defconfig
@@ -59,4 +59,5 @@
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/display5_defconfig b/configs/display5_defconfig
index 697138e..ab5ec59 100644
--- a/configs/display5_defconfig
+++ b/configs/display5_defconfig
@@ -75,3 +75,4 @@
 CONFIG_MXC_UART=y
 CONFIG_SPI=y
 CONFIG_MXC_SPI=y
+CONFIG_IMX_WATCHDOG=y
diff --git a/configs/display5_factory_defconfig b/configs/display5_factory_defconfig
index 5962b64..5d1c746 100644
--- a/configs/display5_factory_defconfig
+++ b/configs/display5_factory_defconfig
@@ -82,4 +82,5 @@
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4000
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/ge_bx50v3_defconfig b/configs/ge_bx50v3_defconfig
index 729377d..c907779 100644
--- a/configs/ge_bx50v3_defconfig
+++ b/configs/ge_bx50v3_defconfig
@@ -41,5 +41,6 @@
 CONFIG_MII=y
 CONFIG_SPI=y
 CONFIG_MXC_SPI=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
 # CONFIG_EFI_LOADER is not set
diff --git a/configs/kp_imx6q_tpc_defconfig b/configs/kp_imx6q_tpc_defconfig
index 84ca1ce..5ebbe1d 100644
--- a/configs/kp_imx6q_tpc_defconfig
+++ b/configs/kp_imx6q_tpc_defconfig
@@ -40,4 +40,5 @@
 CONFIG_IMX_THERMAL=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/mx53ppd_defconfig b/configs/mx53ppd_defconfig
index 7be5c04..34328fd 100644
--- a/configs/mx53ppd_defconfig
+++ b/configs/mx53ppd_defconfig
@@ -37,4 +37,5 @@
 CONFIG_USB_STORAGE=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/tqma6s_wru4_mmc_defconfig b/configs/tqma6s_wru4_mmc_defconfig
index df4c87e..c1be704 100644
--- a/configs/tqma6s_wru4_mmc_defconfig
+++ b/configs/tqma6s_wru4_mmc_defconfig
@@ -65,4 +65,5 @@
 CONFIG_USB_STORAGE=y
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_SMSC95XX=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y
diff --git a/configs/warp_defconfig b/configs/warp_defconfig
index 6a9c91e..63eee27 100644
--- a/configs/warp_defconfig
+++ b/configs/warp_defconfig
@@ -37,4 +37,5 @@
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OF_LIBFDT=y