msm: vidc: Initialize DCVS load properly

Video session is made to run in TURBO mode during
various stages of the session. Video instance load
do not reflect the actual video load which can be
utilized to initialize DCVS state from the DCVS
table.

CRs-Fixed: 2007776
Change-Id: I539a7098159e6486e3c436c449a540c5ac60d6d3
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>