arm: mvebu: x530: Enable watchdog in SPL and U-Boot

Enable the hardware watchdog to guard against system lock ups when
running in the SPL or U-Boot. Stop the watchdog just before booting so
that the OS can re-enable it if needed.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/x530_defconfig b/configs/x530_defconfig
index cd18e9e..c893c44 100644
--- a/configs/x530_defconfig
+++ b/configs/x530_defconfig
@@ -19,6 +19,8 @@
 CONFIG_SILENT_U_BOOT_ONLY=y
 CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC=y
 CONFIG_MISC_INIT_R=y
+CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
 CONFIG_CMD_MEMINFO=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
@@ -72,3 +74,6 @@
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_ASIX=y
 CONFIG_USB_ETHER_ASIX88179=y
+CONFIG_WATCHDOG=y
+CONFIG_WDT=y
+CONFIG_WDT_ORION=y