vfs_ceph_new: Add path based fallback for SMB_VFS_FNTIMES

vfs_ceph_new: Add path based fallback for SMB_VFS_FNTIMES

Fallback mechanism was missing in vfs_ceph_fntimes() for path
based call.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15834

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Mon Mar 17 20:48:55 UTC 2025 on atb-devel-224

(cherry picked from commit dbc48a4cda7489363688bb38f6fa678011fedfaf)

Autobuild-User(v4-22-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-22-test): Tue Mar 18 16:50:49 UTC 2025 on atb-devel-224