[MIPS] Wire up the timerfd_*() o32 system calls

This patch enables the system calls timerfd_create(), timerfd_settime()
and timerfd_gettime() for MIPS architecture.

Please see the following Bugzilla entry for more details:

http://bugzilla.kernel.org/show_bug.cgi?id=10038

This was tested using a Malta 4Kc board in both little-endian and
big-endian modes. The unit test program is available from the URL
above.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>

[Ralf: Added N64, N32 and O32 bits on 64-bit kernels.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index fa9a587..4964c82 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -341,16 +341,19 @@
 #define __NR_timerfd			(__NR_Linux + 318)
 #define __NR_eventfd			(__NR_Linux + 319)
 #define __NR_fallocate			(__NR_Linux + 320)
+#define __NR_timerfd_create		(__NR_Linux + 321)
+#define __NR_timerfd_gettime		(__NR_Linux + 322)
+#define __NR_timerfd_settime		(__NR_Linux + 323)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		320
+#define __NR_Linux_syscalls		323
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		320
+#define __NR_O32_Linux_syscalls		323
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -638,16 +641,19 @@
 #define __NR_timerfd			(__NR_Linux + 277)
 #define __NR_eventfd			(__NR_Linux + 278)
 #define __NR_fallocate			(__NR_Linux + 279)
+#define __NR_timerfd_create		(__NR_Linux + 280)
+#define __NR_timerfd_gettime		(__NR_Linux + 281)
+#define __NR_timerfd_settime		(__NR_Linux + 282)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		279
+#define __NR_Linux_syscalls		282
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		279
+#define __NR_64_Linux_syscalls		282
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -939,16 +945,19 @@
 #define __NR_timerfd			(__NR_Linux + 281)
 #define __NR_eventfd			(__NR_Linux + 282)
 #define __NR_fallocate			(__NR_Linux + 283)
+#define __NR_timerfd_create		(__NR_Linux + 284)
+#define __NR_timerfd_gettime		(__NR_Linux + 285)
+#define __NR_timerfd_settime		(__NR_Linux + 286)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		283
+#define __NR_Linux_syscalls		286
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		283
+#define __NR_N32_Linux_syscalls		286
 
 #ifdef __KERNEL__