ARM: dts: msm: Update IB values for ocmem venus on msm8994

Update IB values according the OCMEM clock plan. Till 1080P 30 fps
OCMEM needs to be at SVS and higher resolutions need to be at Nominal.

Change-Id: I1fb31b28f1e7484732ca780c5086370f06a5ed54
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>