msm: vidc: Add controls specific to H263

Userspace requires controls to set profile and level values. Hence
expose V4L2_CID_MPEG_VIDC_VIDEO_H263_PROFILE and
V4L2_CID_MPEG_VIDC_VIDEO_H263_LEVEL.

Change-Id: Id2b5d4ade8dda1a32b11820936532300b18c37ac
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
Signed-off-by: Vinay Kalia <vkalia@codeaurora.org>