mm-video-v4l2: vidc: venc: Allow setting dynamic Bframe

Bframe number can be changed based on the P/B ratio if P frames
are changed. Currently we are restricting client to change the
B Frame numbers even if B frame ratio is same.

Change-Id: I9a6004819324bc7d947205ff54ac4cf927edee73
CRs-Fixed: 1068703
1 file changed