msm: vidc: Skip sending error to client when buffer count is small

Do not send error to client when buffer count is small as client
may send small count initially. Buffer count will be adjusted to
correct value later.

CRs-Fixed: 2041182
Change-Id: Iec338c7a2fdf458d286c500a3b37b583674de7b8
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>