The GEM object's free function is now called through struct
drm_gem_object_funcs.free. The function struct drm_driver.gem_prime_mmap
is now required for mmap'ing GEM objects to userspace.
v2:
	* set drm_driver.gem_prime_mmap to drm_gem_prime_mmap()
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190702115012.4418-4-tzimmermann@suse.de
        .desc                   = "hibmc drm driver",
        .major                  = 1,
        .minor                  = 0,
-       .gem_free_object_unlocked =
-               drm_gem_vram_driver_gem_free_object_unlocked,
        .dumb_create            = hibmc_dumb_create,
        .dumb_map_offset        = drm_gem_vram_driver_dumb_mmap_offset,
+       .gem_prime_mmap         = drm_gem_prime_mmap,
        .irq_handler            = hibmc_drm_interrupt,
 };