[AVR32] Wire up sys_utimensat

Tested with a slightly hacked version of the test case included with
the original utimensat patch. All OK.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

arch/avr32/kernel/syscall_table.S

@@ -291,4 +291,5 @@ sys_call_table:
 	.long	sys_shmget		/* 275 */
 	.long	sys_shmdt
 	.long	sys_shmctl
+	.long	sys_utimensat
 	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */

include/asm-avr32/unistd.h

@@ -295,8 +295,10 @@
 #define __NR_shmdt		276
 #define __NR_shmctl		277
 
+#define __NR_utimensat		278
+
 #ifdef __KERNEL__
-#define NR_syscalls		278
+#define NR_syscalls		279
 
 
 #define __ARCH_WANT_IPC_PARSE_VERSION