msm: vidc: Add support for Cx ipeak limitation

Make a vote call whenever the clock frequency driver computes
crosses a threshold mark. This vote call handles the situation
when many subsystems are in turbo and where a need arises to
throttle the CDSP current.

CRs-Fixed: 1104037
Change-Id: I9ab7261c28468c3c97af4b5a0d658cc7a69709ec
Signed-off-by: Abdulla Anam <abdullahanam@codeaurora.org>