msm: vidc: Adapt driver based on new firmware interface

Update following firmware interface
- Remove max number of B pictures
- Remove VUI info for bitstream restriction flag
- Add UBWC stats complexity number

CRs-Fixed: 2031681
Change-Id: I55dc31ac3899b92ac6e832212800cc99c72a8926
Signed-off-by: Saurabh Kothawade <skothawa@codeaurora.org>