msm: vidc: Update Venus DCVS algorithm for 8994V2

Current DCVS algorithm depends on Venus frequencies. Since
Venus frequencies are updated for 8994 V2, DCVS algorithm
is retuned.

Change-Id: Ieb5d345a542ae65b52e4951185b99fea08f69b13
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>