Enable the kernel config of rockchip wdt for watchdog functions

Change-Id: Iaeb2924a2a0b7981740a20e7c5462179d8637757
Signed-off-by: yi-hsin_hung <yi-hsin_hung@asus.com>

Author: yihsin-hung

arch/arm/configs/miniarm-rk3288_defconfig

@@ -254,6 +254,9 @@ CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
 CONFIG_DEVFREQ_THERMAL=y
 CONFIG_ROCKCHIP_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_DW_WATCHDOG=y
 CONFIG_MFD_CROS_EC=y
 CONFIG_MFD_CROS_EC_SPI=y
 CONFIG_MFD_RK808=y