Upgrade tcpdump to tcpdump-4.99.1

Test: make
Change-Id: I052ed8f5279c806e4d2ff925f581b71db3ac03c0
diff --git a/rpc_auth.h b/rpc_auth.h
index 3cc9b30..b73e3be 100644
--- a/rpc_auth.h
+++ b/rpc_auth.h
@@ -65,14 +65,7 @@
  * Authentication info.  Opaque to client.
  */
 struct sunrpc_opaque_auth {
-	uint32_t oa_flavor;		/* flavor of auth */
-	uint32_t oa_len;		/* length of opaque body */
+	nd_uint32_t oa_flavor;		/* flavor of auth */
+	nd_uint32_t oa_len;		/* length of opaque body */
 	/* zero or more bytes of body */
 };
-
-#define SUNRPC_AUTH_NONE	0	/* no authentication */
-#define	SUNRPC_AUTH_NULL	0	/* backward compatibility */
-#define	SUNRPC_AUTH_UNIX	1	/* unix style (uid, gids) */
-#define	SUNRPC_AUTH_SYS		1	/* forward compatibility */
-#define	SUNRPC_AUTH_SHORT	2	/* short hand unix style */
-#define SUNRPC_AUTH_DES		3	/* des style (encrypted timestamps) */