msm: mdss: restrict decimation when layer format is macro-tile

When layer format is macro-tile, decimation cannot be supported. Add the
necessary checks to fail HW configuration for such use-case.

Change-Id: I68adbcdf8014f9ad528e945928f309b221c6dcfd
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>