fbdev: sh_mobile_lcdc: Fix vertical panning step
fbdev: sh_mobile_lcdc: Fix vertical panning step

Commit 15dede882e564601947f2ce4b647742c0351be6d added support for
horizontal panning but accidentally computes the Y pan step value
incorrectly for NV12/21 and NV16/61 formats. Fix this.

Signed-off-by: Laurent Pinchart <3ded2f39a78f0d7044839546f95841842b4d7c96@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <9843642cd7809d7c6d8c25ac9e4b0e2f1b5283bf@gmx.de>

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