arm: baltos: switch to driver model for the watchdog timer

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
diff --git a/configs/am335x_baltos_defconfig b/configs/am335x_baltos_defconfig
index aa8fee5..af027a3 100644
--- a/configs/am335x_baltos_defconfig
+++ b/configs/am335x_baltos_defconfig
@@ -69,4 +69,5 @@
 CONFIG_USB_FUNCTION_MASS_STORAGE=y
 CONFIG_USB_ETHER=y
 CONFIG_USBNET_HOST_ADDR="de:ad:be:af:00:00"
+CONFIG_WDT=y
 CONFIG_FAT_WRITE=y