msm: vidc: skip sending old resolution buffers

VP9 decoder has scaling feature where new resolution
frames can refer to old resolution frames and hence
video hardware may not release the old resolution
buffers. In case of resolution change followed by
seek (flush) the old resolution buffers are sent to
video hardware again which is resulting in video
usecase failures. So avoid sending old resolution
buffers to resolve the failures.

Change-Id: Ie6666024b1f85f52a444d1f4d78fe6b3d21892b9
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>