omap: igep0020: minor refactoring
omap: igep0020: minor refactoring

to allow easy addition of IGEP3

Signed-off-by: Mike Rapoport <a17fed27eaa842282862ff7c1b9c8395a26ac320@compulab.co.il>
Acked-by: Enric Balletbo i Serra <84b0e7bf25d36728076eb55422a35b75ccc0ab37@iseebcn.com>
Signed-off-by: Tony Lindgren <1001e8702733cced254345e193c88aaa47a4f5de@atomide.com>

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