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_gem_prime.c

@@ -37,12 +37,13 @@ struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
 	return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
 }
 
-void *msm_gem_prime_vmap(struct drm_gem_object *obj)
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 {
-	return msm_gem_get_vaddr(obj);
+	map->vaddr = msm_gem_get_vaddr(obj);
+	return IS_ERR_OR_NULL(map->vaddr);
 }
 
-void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 {
 	msm_gem_put_vaddr(obj);
 }