disp: msm: update msm_gem ops and remove unused drm_driver callbacks

Update msm_gem and msm_drv to comply with latest 5.15 kernel.
Modify dma_buf_vmap() and dma-buf's vmap callback to use
struct dma_buf_map. Rename dma_resv_get_excl_rcu to _unlocked.
Remove deprecated GEM and PRIME callbacks.

Change-Id: Ifdfc7f872c988d8455f465e7d17dfbcf212bb5f6
Signed-off-by: Bruce Hoo <bingchua@codeaurora.org>
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>

msm/msm_atomic.c

@@ -532,7 +532,7 @@ int msm_atomic_prepare_fb(struct drm_plane *plane,
 
 	obj = msm_framebuffer_bo(new_state->fb, 0);
 	msm_obj = to_msm_bo(obj);
-	fence = dma_resv_get_excl_rcu(msm_obj->resv);
+	fence = dma_resv_get_excl_unlocked(msm_obj->resv);
 
 	drm_atomic_set_fence_for_plane(new_state, fence);
 
@@ -740,7 +740,7 @@ int msm_atomic_commit(struct drm_device *dev,
 				msm_framebuffer_bo(new_plane_state->fb, 0);
 			struct msm_gem_object *msm_obj = to_msm_bo(obj);
 			struct dma_fence *fence =
-				dma_resv_get_excl_rcu(msm_obj->resv);
+				dma_resv_get_excl_unlocked(msm_obj->resv);
 
 			drm_atomic_set_fence_for_plane(new_plane_state, fence);
 		}