rbd: write image mirror status if state is CREATING

It can take upto 30s for the image mirror status to be written
to rbd_mirroring on the secondary for a newly created image. This fix
attempts to reduce the time by writing the status to rbd_mirroring even
if the image state is set to CREATING.

Fixes: https://tracker.ceph.com/issues/71138

Signed-off-by: N Balachandran <[email protected]>
(cherry picked from commit 25a8de9)

Author: nbalacha

src/cls/rbd/cls_rbd.cc

@@ -5073,7 +5073,8 @@ int image_status_set(cls_method_context_t hctx, const string &global_image_id,
   if (r < 0) {
     return 0;
   }
-  if (mirror_image.state != cls::rbd::MIRROR_IMAGE_STATE_ENABLED) {
+  if (mirror_image.state != cls::rbd::MIRROR_IMAGE_STATE_ENABLED &&
+      mirror_image.state != cls::rbd::MIRROR_IMAGE_STATE_CREATING) {
     return 0;
   }