msm: vidc: read dynamic buffer mode capabilities

During session_init_done firmware will inform if
it supports dynamic buffer mode for output buffers.

Change-Id: I6b29f881f44c89b3821e68aff10511644771a6d1
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
msm: vidc: Add support for V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB

V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB is the V4L2 standard version
of the vendor extension V4L2_CID_MPEG_VIDC_VIDEO_CIR_MBS. Driver needs
to support both versions as some of the clients use the standard
control.

Change-Id: Ib05f75f9c8eaa64dd08a548b71d1d2387aace9aa
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>