drm/msm/sde: replace plane property/state handling with msm_prop

Remove plane-oriented property/state handling helper functions and
use the common 'msm_property' functions instead.

Change-Id: Iadf61500be020b432187bde75c681a0a1a0b000f
Signed-off-by: Clarence Ip <cip@codeaurora.org>
1 file changed