drm/bochs: Replace drm_gem_object_unreference_unlocked with put function

This patch unifies the naming of DRM functions for reference counting
of struct drm_gem_object. The resulting code is more aligned with the
rest of the Linux kernel interfaces.

v2:
	* rebase onto fbdev rework
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20180926113623.22679-1-tzimmermann@suse.deSigned-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/bochs/bochs_mm.c

@@ -414,7 +414,7 @@ int bochs_dumb_create(struct drm_file *file, struct drm_device *dev,
 		return ret;
 
 	ret = drm_gem_handle_create(file, gobj, &handle);
-	drm_gem_object_unreference_unlocked(gobj);
+	drm_gem_object_put_unlocked(gobj);
 	if (ret)
 		return ret;
 
@@ -454,6 +454,6 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 	bo = gem_to_bochs_bo(obj);
 	*offset = bochs_bo_mmap_offset(bo);
 
-	drm_gem_object_unreference_unlocked(obj);
+	drm_gem_object_put_unlocked(obj);
 	return 0;
 }