msm: disp: rotator: changes to enable rotator on 5.4 kernel

Few v4l2_ioctl_ops are deprecated on kernel upgrade. Made
changes to use the new simulated ops. Addressed compilation
issues on enabling rotator on 5.4 kernel.

Change-Id: I37add012306da433c4d7f8aaada3089b6ecdd819
Signed-off-by: Raviteja Tamatam <travitej@codeaurora.org>