MDEV-4451 Attempt to write-lock a SEQUENCE table with log-bin enabled causes ER_BINLOG_ROW_ENGINE

mark the SEQUENCE engine as both SBR and RBR capable :)

storage/sequence/mysql-test/sequence/simple.result

@@ -269,3 +269,7 @@ master-bin.000001	#	Query	#	#	use test; insert t1 select * from seq_1_to_10
 master-bin.000001	#	Xid	#	#	COMMIT /* XID */
 drop table t1;
 drop table seq_1_to_1;
+set binlog_format=statement;
+lock table seq_1_to_2 write;
+set binlog_format=row;
+lock table seq_1_to_2 write;

storage/sequence/mysql-test/sequence/simple.test

@@ -95,3 +95,12 @@ drop table t1;
 # MDEV-4449 SEQUENCE depends on TEST_SQL_DISCOVERY for discovering tables upon DDL
 #
 drop table seq_1_to_1;
+
+#
+# MDEV-4451 Attempt to write-lock a SEQUENCE table with log-bin enabled causes ER_BINLOG_ROW_ENGINE_AND_STMT_ENGINE
+#
+set binlog_format=statement;
+lock table seq_1_to_2 write;
+set binlog_format=row;
+lock table seq_1_to_2 write;
+

storage/sequence/sequence.cc

@@ -45,7 +45,8 @@ private:
 public:
   ha_seq(handlerton *hton, TABLE_SHARE *table_arg)
     : handler(hton, table_arg), seqs(0) { }
-  ulonglong table_flags() const { return 0; }
+  ulonglong table_flags() const
+  { return HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE; }
 
   /* open/close/locking */
   int create(const char *name, TABLE *table_arg,