omap: HSMMC: Fix GPIO muxing
omap: HSMMC: Fix GPIO muxing

Use generic gpio call to check the validity of the gpio. Note that
this includes gpio 0 also which was missing before.

Signed-off-by: Silesh C V <098d921f6ee7a55c74cc54eac65a01ad8c581cf8@ti.com>
Signed-off-by: Tony Lindgren <1001e8702733cced254345e193c88aaa47a4f5de@atomide.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs