msm: vidc: Set constrained intra refresh property

If Intra Refresh mode is enabled during encode, then
enable constrained intra refresh property on firmware.
Without constrained intra refresh enabled, Intra Refresh
mode will not be effective.

CRs-Fixed: 1001217
Change-Id: Id326c73f78f3fadb5193a1e840f295d764fb013b
Signed-off-by: Arun Menon <avmenon@codeaurora.org>