MariaRocks: fix a few tests

Test suite parameters for 'rocksdb' test suite were disabled in order
to get mysqld to start at all when ha_rocksdb is a dynamic plugin.

A lot of tests depend on these parameters being enabled, though. Put
them back by using the loose- form.

storage/rocksdb/mysql-test/rocksdb/my.cnf

@@ -7,5 +7,5 @@ default-storage-engine=rocksdb
 
 sql-mode=NO_ENGINE_SUBSTITUTION
 explicit-defaults-for-timestamp=1
-#rocksdb_lock_wait_timeout=1
-#rocksdb_strict_collation_check=0
+loose-rocksdb_lock_wait_timeout=1
+loose-rocksdb_strict_collation_check=0