galera: temporarily disabling problematic tests

mysql-test/suite/galera/disabled.def

@@ -22,3 +22,7 @@ galera_as_slave_replay : MDEV-32780 galera_as_slave_replay: assertion in the wsr
 galera_slave_replay : MDEV-32780 galera_as_slave_replay: assertion in the wsrep::transaction::before_rollback()
 galera_bf_lock_wait : MDEV-32781 galera_bf_lock_wait test failed
 galera_sst_mysqldump_with_key : MDEV-32782 galera_sst_mysqldump_with_key test failed
+mdev-31285 : MDEV-25089 Assertion `error.len > 0' failed in galera::ReplicatorSMM::handle_apply_error()
+galera_var_ignore_apply_errors : MENT-1997 galera_var_ignore_apply_errors test freezes
+MW-402 : temporarily disabled at the request of Codership
+MDEV-22232 : temporarily disabled at the request of Codership

mysql-test/suite/galera_3nodes/disabled.def

@@ -13,3 +13,6 @@
 galera_2_cluster : MDEV-32631 galera_2_cluster: before_rollback(): Assertion `0' failed
 galera_gtid_2_cluster : MDEV-32633 galera_gtid_2_cluster: Assertion `thd->wsrep_next_trx_id() != (0x7fffffffffffffffLL * 2ULL + 1)'
 galera_ssl_reload : MDEV-32778 galera_ssl_reload failed with warning message
+galera_ipv6_mariabackup : temporarily disabled at the request of Codership
+galera_pc_bootstrap : temporarily disabled at the request of Codership
+galera_ipv6_mariabackup_section : temporarily disabled at the request of Codership