ARM: dts: msm: Increase venus clock frequency from SVS to nominal for VC1

Venus firmware taking huge time in bit plane decoding for VC1 bit streams,
which is resulting frame drops.
Increasing clock frequency from SVS to nominal for load 1080p 30fps.

Change-Id: Id09834d4176b553fe55750db7068ece44a491354
CRs-Fixed: 714153
Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>