msm: vidc: Set plane constraints for NV12

Plane constraints setting need to be set for NV12
color format as well. Derive stride and scanline
info from msm_media_info.h instead of hardcoding.

CRs-Fixed: 2368458
Change-Id: Ie2f099605203b32ea222a1314ac7c0a7b14d39bc
Signed-off-by: Vaibhav Deshu Venkatesh <vdeshuve@codeaurora.org>