msm: vidc: Release buffers individually

Currently driver releases all the buffers of buffer type when
V4L2 framework calls buffer clean_up. Release them individually
based on buffer Type and buffer Index.

CRs-Fixed: 2023979
Change-Id: I8e6558563aa63cfc5fe092f351cb81249256bde9
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>
Signed-off-by: Karthikeyan Periasamy <kperiasa@codeaurora.org>