arm/dt: msm8974: Fix nominal frequency and bandwidth vote of GPU

Change GPU nominal frequency and OCMEM bandwidth vote to 320Mhz
as per clock plan for 8974v2.

Change-Id: I509393fe869905bd35d76b7bd2dc484b90a096db
Signed-off-by: Suman Tatiraju <sumant@codeaurora.org>
2 files changed