storagepoolxml2argvtest: run mountopts test conditionally

This test relies on namespace support, which is only compiled in
if we have the 'fs' and 'netfs' backends.
Signed-off-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

tests/storagepoolxml2argvtest.c

@@ -174,7 +174,9 @@ mymain(void)
     DO_TEST_PLATFORM("pool-netfs");
     DO_TEST_PLATFORM("pool-netfs-auto");
     DO_TEST_PLATFORM("pool-netfs-protocol-ver");
+#if WITH_STORAGE_FS
     DO_TEST_PLATFORM("pool-netfs-ns-mountopts");
+#endif
     DO_TEST_PLATFORM("pool-netfs-gluster");
     DO_TEST_PLATFORM("pool-netfs-cifs");