msm: sde: add client driven pre-fetch feature in rotator

Add client driver pre-fetch feature for rotator. Enable it
for SSPP/WRITEBACK based on the DT setting.

Change-Id: I7b4e58b26fcae91c0a47c1adac69913713fae324
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>