msm: vidc: Update perf mode for different video hardwares

Perf mode can be either predefined or can be decided dynamically.
It is configured differently for different video hardware versions.
Perf mode is now updated with below
1. Remove multicore calculation as it is not applicable for single core
   hardware.
2. Rate control type CQ is considered during load calculation
3. If the clocks are available, keep higher perf mode, unless restricted
   by the hardware specification.

CRs-Fixed: 2462264
Change-Id: I9328e07ea3d1667b15a431c624112f1e8f8c92e0
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>