msm_fb: display: enable mdp chip select controller

Enable mdp chip select controller so that CS signal is
asserted or de-asserted by MDP according to activities
of memory access on both read and write to save power.

Change-Id: Ic0acc1c8cbe06c5f3cf25627af209abadeb1350c
Signed-off-by: kuogee hsieh <khsieh@codeaurora.org>
3 files changed