msm: vidc: Rewrite QP setting to HW

Remove redundant QP settings to HW and simplify error
checks for various codecs using HW returned caps.

CRs-Fixed: 1010707
Change-Id: I5dabd8c75e42e4419ff25ef3eed873fb6fa3dcd7
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>
Signed-off-by: Vaibhav Deshu Venkatesh <vdeshuve@codeaurora.org>