[ARM] Allow watchdog drivers to be selected again

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a0cdaaf..a7e9fea 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1040,6 +1040,8 @@
 
 source "drivers/hwmon/Kconfig"
 
+source "drivers/watchdog/Kconfig"
+
 source "drivers/ssb/Kconfig"
 
 #source "drivers/l3/Kconfig"