drm/fsl-dcu: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS

DRM_GEM_CMA_DRIVER_OPS sets the functions in struct drm_driver
to their defaults. No functional changes are made.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200605073247.4057-12-tzimmermann@suse.de

drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c

@@ -141,12 +141,7 @@ static struct drm_driver fsl_dcu_drm_driver = {
 	.irq_handler		= fsl_dcu_drm_irq,
 	.irq_preinstall		= fsl_dcu_irq_uninstall,
 	.irq_uninstall		= fsl_dcu_irq_uninstall,
-	.gem_create_object	= drm_gem_cma_create_object_default_funcs,
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
-	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
-	.gem_prime_mmap		= drm_gem_cma_prime_mmap,
-	.dumb_create		= drm_gem_cma_dumb_create,
+	DRM_GEM_CMA_DRIVER_OPS,
 	.fops			= &fsl_dcu_drm_fops,
 	.name			= "fsl-dcu-drm",
 	.desc			= "Freescale DCU DRM",