ARM: dts: msm: add rotator reg bus bw setting for sdm845

Add bandwidth settings related to rotator register access
for sdm845 target. Based on the usecase, the driver picks
the appropriate ab/ib values from these settings and sends
the bus update request.

Change-Id: Iec1ed68f39a20329407112163454739eb6c84104
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>