rgw: fix radosgw linkage with WITH_RADOSGW_BEAST_FRONTEND=OFF
The master commit
5c040d991510cb4ff0d74305889130e2d84fedc1 fixing issue
http://tracker.ceph.com/issues/23680 was backported to luminous for v12.2.11 by
a47e714e7f5ce803ba7d8986c5d954123b85fc8e which was included in
https://github.com/ceph/ceph/pull/24621, where it came as the first of a series
of five cherry-picks.
This, it turns out, was the wrong order - it should have come last since it
was a follow-up fix.
Signed-off-by: Nathan Cutler <ncutler@suse.com>
(partial manual backport of
5c040d991510cb4ff0d74305889130e2d84fedc1)