core: fix error message

Let's have a more accurate and correct error message that reflects what
the failing function tried to do.

Signed-off-by: Sébastien Han <seb@redhat.com>
(cherry picked from commit 4f1a2d4)

pkg/operator/ceph/cluster/mon/config.go

@@ -101,7 +101,7 @@ func CreateOrLoadClusterInfo(clusterdContext *clusterd.Context, namespace string
 
 		clusterInfo, err = createNamedClusterInfo(clusterdContext, namespace)
 		if err != nil {
-			return nil, maxMonID, monMapping, errors.Wrap(err, "failed to create mon secrets")
+			return nil, maxMonID, monMapping, errors.Wrap(err, "failed to create initial cluster info")
 		}
 
 		err = createClusterAccessSecret(clusterdContext.Clientset, namespace, clusterInfo, ownerInfo)