msm: sde: add internal a5x tile format for inline rotator

Add internal a5x tile streaming pixel format for inline rotator.
The new pixel formats are defined as private and are not listed
in v4l2 pixel format enumeration.

CRs-Fixed: 2009714
Change-Id: I77b226ac11d499347c65857652c0f516357adcb7
Signed-off-by: Alan Kwong <akwong@codeaurora.org>