msm: vidc: Add support for profile/level in decoder

Allow userspace to specify initial profile/level at start of decode.
This allows the core to properly decide the number of output buffers to
request for and avoid the initial port reconfig if the profile/level
set is correct.

Change-Id: Ic7c47325f752fd0cf6116806a9988cc15d77542d
Signed-off-by: Shalaj Jain <shalajj@codeaurora.org>