Update to new version 0.8.16 from BRCM

Sync with main tree commit b8349523e460493fa0b4de36c689595109e45e91
Author: Neeraj Kumar Garg <neerajkg@broadcom.com>
Date:   Tue Dec 27 23:21:45 2011 +0200
    P2P: Reject p2p_group_add if forced frequency is not acceptable

Change-Id: Icb4541a371b05c270e80440d7a7fdea7f33ff61e
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/wps/upnp_xml.h b/src/wps/upnp_xml.h
index 62dbe60..616af3d 100644
--- a/src/wps/upnp_xml.h
+++ b/src/wps/upnp_xml.h
@@ -16,6 +16,8 @@
 void xml_data_encode(struct wpabuf *buf, const char *data, int len);
 void xml_add_tagged_data(struct wpabuf *buf, const char *tag,
 			 const char *data);
+int xml_next_tag(const char *in, const char **out,
+		 const char **out_tagname, const char **end);
 char * xml_get_first_item(const char *doc, const char *item);
 struct wpabuf * xml_get_base64_item(const char *data, const char *name,
 				    enum http_reply_code *ret);