Starting with this commit:
047ef2fa rename ARCH_BCM to ARCH_BCM_MOBILE (clocksource)
the meaning of the ARCH_BCM config option is changed to represent
all Broadcom chips with code in the mach-bcm directory.
Configuration options related to specific Broadcom platforms should
now use another symbol (currently ARCH_BCM_MOBILE, ARCH_BCM2835, or
ARCH_BCM_5301X).
The BCM_KONA_WDT config option indicates a dependency on ARCH_BCM,
but it should be ARCH_BCM_MOBILE instead. Fix that.
Signed-off-by: Alex Elder <elder@xxxxxxxxxx>