board: ge: bx50v3: use imx wdt

Enable DM imx WDT
Enable SYSRESET_WATCHDOG to maintain WDT based reset ability

Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
diff --git a/configs/ge_bx50v3_defconfig b/configs/ge_bx50v3_defconfig
index 38ea981..81e450c 100644
--- a/configs/ge_bx50v3_defconfig
+++ b/configs/ge_bx50v3_defconfig
@@ -72,6 +72,9 @@
 CONFIG_VIDEO_IPUV3=y
 CONFIG_WATCHDOG_TIMEOUT_MSECS=6000
 CONFIG_IMX_WATCHDOG=y
+CONFIG_WDT=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
 # CONFIG_EFI_LOADER is not set
 CONFIG_SYS_MALLOC_F_LEN=0x4000
 CONFIG_SYS_WHITE_ON_BLACK=y