arm: mvebu: turris_mox: enable wdt command in defconfig

Enable wdt command in defconfig for Turris MOX. This is useful when
doing debugging.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig
index 66dc247..4543acf 100644
--- a/configs/turris_mox_defconfig
+++ b/configs/turris_mox_defconfig
@@ -31,6 +31,7 @@
 CONFIG_CMD_PCI=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_CACHE=y