fbdev: msm: Enable mdss rotator driver

This is a snapshot of mdss rotator driver from msm-4.9 as of
commit df3a536985e3 ("msm: mdss: fix the use after free problem
in rotator ioctl").

Change-Id: I7de4f1af4ba4262c6c5ceca6b9ef441b3d1d2be9
Signed-off-by: Althaf Neelanchirayil <aneelanc@codeaurora.org>
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>