alpha: Fixup recvmmsg syscall glue

Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/alpha/include/asm/unistd.h

@@ -433,10 +433,11 @@
 #define __NR_signalfd			476
 #define __NR_timerfd			477
 #define __NR_eventfd			478
+#define __NR_recvmmsg			479
 
 #ifdef __KERNEL__
 
-#define NR_SYSCALLS			479
+#define NR_SYSCALLS			480
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR