drm/msm: Replace drm_framebuffer_{un/reference} with put, get functions

This patch unifies the naming of DRM functions for reference counting
of struct drm_framebuffer. The resulting code is more aligned with the
rest of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c

@@ -185,7 +185,7 @@ static void mdp5_plane_reset(struct drm_plane *plane)
 	struct mdp5_plane_state *mdp5_state;
 
 	if (plane->state && plane->state->fb)
-		drm_framebuffer_unreference(plane->state->fb);
+		drm_framebuffer_put(plane->state->fb);
 
 	kfree(to_mdp5_plane_state(plane->state));
 	mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
@@ -228,7 +228,7 @@ static void mdp5_plane_destroy_state(struct drm_plane *plane,
 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
 
 	if (state->fb)
-		drm_framebuffer_unreference(state->fb);
+		drm_framebuffer_put(state->fb);
 
 	kfree(pstate);
 }