msm: vidc: Initialize core ops for bengal VPU version

For bengal, core operations were falling back to default ops
i.e IRIS2 VPU ops. Fix the same by initializing it to bengal
specific VPU.

CRs-Fixed: 2503996
Change-Id: Ie723216494814456f2905bc20b34a98df33f0cda
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>