drm/mali: Use new atomic iterator macros

for_each_obj_in_state is about to be removed, so use the new iterator
macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-12-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>

drivers/gpu/drm/arm/malidp_drv.c

@@ -225,7 +225,7 @@ static void malidp_atomic_commit_tail(struct drm_atomic_state *state)
 
 	drm_atomic_helper_commit_modeset_disables(drm, state);
 
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+	for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
 		malidp_atomic_commit_update_gamma(crtc, old_crtc_state);
 		malidp_atomic_commit_update_coloradj(crtc, old_crtc_state);
 		malidp_atomic_commit_se_config(crtc, old_crtc_state);