drm/msm/sde: correct inline rotator qos remap loop

Inline rotator qos remap loop is not checking against
loop index, and will access invalid vbif configuration
entry. Correct loop exit bound check to compare against
the loop index.

Change-Id: I94cea9ac6211aea49fbdea378fcb8806a4c44cd6
Signed-off-by: Alan Kwong <akwong@codeaurora.org>