The Samsung GPIO drivers are always built-in when the relevant
platform is selected.  Change the Kconfig symbol to def_bool y
dependant on the platform.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>