spec: Add optional xmlconf

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Fabio M. Di Nitto <fdinitto@redhat.com>

corosync.spec.in

@@ -101,6 +101,9 @@ export rdmacm_LIBS=-lrdmacm \
 %endif
 %if %{with systemd}
 	--enable-systemd \
+%endif
+%if %{with xmlconf}
+	--enable-xmlconf \
 %endif
 	--with-initddir=%{_initrddir}
 
@@ -194,7 +197,6 @@ fi
 %{_mandir}/man5/corosync.conf.5*
 %{_mandir}/man5/votequorum.5*
 
-
 # optional testagent rpm
 #
 %if %{with testagents}