[ALPHA] Add posix timer and clock syscalls.

arch/alpha/kernel/systbls.S

@@ -433,6 +433,15 @@ sys_call_table:
 	.quad sys_set_tid_address
 	.quad sys_restart_syscall
 	.quad sys_fadvise64
+	.quad sys_timer_create
+	.quad sys_timer_settime			/* 415 */
+	.quad sys_timer_gettime
+	.quad sys_timer_getoverrun
+	.quad sys_timer_delete
+	.quad sys_clock_settime
+	.quad sys_clock_gettime			/* 420 */
+	.quad sys_clock_getres
+	.quad sys_clock_nanosleep
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object

include/asm-alpha/unistd.h

@@ -349,7 +349,16 @@
 #define __NR_set_tid_address		411
 #define __NR_restart_syscall		412
 #define __NR_fadvise64			413
-#define NR_SYSCALLS			414
+#define __NR_timer_create		414
+#define __NR_timer_settime		415
+#define __NR_timer_gettime		416
+#define __NR_timer_getoverrun		417
+#define __NR_timer_delete		418
+#define __NR_clock_settime		419
+#define __NR_clock_gettime		420
+#define __NR_clock_getres		421
+#define __NR_clock_nanosleep		422
+#define NR_SYSCALLS			423
 
 #if defined(__GNUC__)