ARM: dts: msm: Update ocmem bandwidth values on 8084

Current ocmem bandwidth numbers on apq8084 is not sufficient to play
certain clips resulting in frame drops. Update ocmem BW for
1080p @ 60fps clips to meet performance.

CRs-Fixed: 668949
Change-Id: Icf91840726b05e872851624881140a05407c7d1b
Signed-off-by: Sowmya Pandiri <spandiri@codeaurora.org>