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/utils/wpa_debug.h b/src/utils/wpa_debug.h
index ae36afe..64ada57 100644
--- a/src/utils/wpa_debug.h
+++ b/src/utils/wpa_debug.h
@@ -136,7 +136,7 @@
 static inline void wpa_hexdump_buf_key(int level, const char *title,
 				       const struct wpabuf *buf)
 {
-	wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : 0,
+	wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : NULL,
 			buf ? wpabuf_len(buf) : 0);
 }