NFC: add NFC socket family

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 4ef98e4..e17f822 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -192,7 +192,8 @@
 #define AF_IEEE802154	36	/* IEEE802154 sockets		*/
 #define AF_CAIF		37	/* CAIF sockets			*/
 #define AF_ALG		38	/* Algorithm sockets		*/
-#define AF_MAX		39	/* For now.. */
+#define AF_NFC		39	/* NFC sockets			*/
+#define AF_MAX		40	/* For now.. */
 
 /* Protocol families, same as address families. */
 #define PF_UNSPEC	AF_UNSPEC
@@ -234,6 +235,7 @@
 #define PF_IEEE802154	AF_IEEE802154
 #define PF_CAIF		AF_CAIF
 #define PF_ALG		AF_ALG
+#define PF_NFC		AF_NFC
 #define PF_MAX		AF_MAX
 
 /* Maximum queue length specifiable by listen.  */