rbd-mirror: The primary GR does not need to wait for the remote to be ready

rbd-mirror: The primary GR does not need to wait for the remote to be ready

The following "remote is not ready yet"  error is not required in case
of primary:

[root@server1 build]# rbd-a mirror group status data/grp1
grp1:
  global_id:   a04e99a8-fc4b-4345-adb8-b97a51dc4cac
  state:       up+error
  description: remote is not ready yet
  service:     admin on server1.lab.eng.blr.redhat.com
  last_update: 2025-03-05 12:02:41
  images:

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>