Suppress warning in waitstream_core().

Suppress the warning about unexpected control subclass frames for
AST_CONTROL_CONNECTED_LINE, AST_CONTROL_REDIRECTING, and AST_CONTROL_AOC
in file.c:waitstream_core().


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@268578 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/file.c

@@ -1276,6 +1276,9 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 				case AST_CONTROL_SRCCHANGE:
 				case AST_CONTROL_HOLD:
 				case AST_CONTROL_UNHOLD:
+				case AST_CONTROL_CONNECTED_LINE:
+				case AST_CONTROL_REDIRECTING:
+				case AST_CONTROL_AOC:
 				case -1:
 					/* Unimportant */
 					break;