drm: remove _unlocked suffix in drm_gem_object_put_unlocked

Spelling out _unlocked for each and every driver is a annoying.
Especially if we consider how many drivers, do not know (or need to)
about the horror stories involving struct_mutex.

Just drop the suffix. It makes the API cleaner.

Done via the following script:

__from=drm_gem_object_put_unlocked
__to=drm_gem_object_put
for __file in $(git grep --name-only $__from); do
  sed -i  "s/$__from/$__to/g" $__file;
done

Pay special attention to the compat #define

v2: keep sed and #define removal separate

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org> (v1)
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200515095118.2743122-14-emil.l.velikov@gmail.com
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 2f7b86c..10c5d56 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -188,7 +188,7 @@ struct drm_gem_object {
 	 * Reference count of this object
 	 *
 	 * Please use drm_gem_object_get() to acquire and drm_gem_object_put_locked()
-	 * or drm_gem_object_put_unlocked() to release a reference to a GEM
+	 * or drm_gem_object_put() to release a reference to a GEM
 	 * buffer object.
 	 */
 	struct kref refcount;