file.c: Don't emit warnings on winks.

Adds an ignore case for wink since it should
pass through with no warning.

ASTERISK-30290 #close

Change-Id: Ieb7e34daa717357ac5c93efb0059f6c2321f16ad

Author: InterLinked1

Diff for: main/file.c

@@ -1744,6 +1744,7 @@ static int waitstream_core(struct ast_channel *c,
 				case AST_CONTROL_UPDATE_RTP_PEER:
 				case AST_CONTROL_PVT_CAUSE_CODE:
 				case AST_CONTROL_FLASH:
+				case AST_CONTROL_WINK:
 				case -1:
 					/* Unimportant */
 					break;