MT#58535 rtpp_flags: fix bug in `direction` parsing

Instead of adding `key` the `val` is to be added.

Change-Id: I8ffdfd8add0d91669f75c2cffe30a3e07e3089eb

daemon/control_ng_flags_parser.c

@@ -395,7 +395,7 @@ void parse_rtpp_flags(const str * rtpp_flags, bencode_item_t * root_dict,
 					transport = 0x103;
 				/* direction */
 				else if (str_eq(&key, "direction"))
-					bencode_list_add_str(direction, &key);
+					bencode_list_add_str(direction, &val);
 				else
 					goto generic;
 				goto next;