[IA64] Enable preadv2 and pwritev2 syscalls for ia64

New system calls added in:
      f17d8b35452cab31a70d224964cd583fb2845449
      vfs: vfs: Define new syscalls preadv2,pwritev2

Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h
index 41369a1..ea5363d 100644
--- a/arch/ia64/include/uapi/asm/unistd.h
+++ b/arch/ia64/include/uapi/asm/unistd.h
@@ -337,5 +337,7 @@
 #define __NR_kcmp			1345
 #define __NR_mlock2			1346
 #define __NR_copy_file_range		1347
+#define __NR_preadv2			1348
+#define __NR_pwritev2			1349
 
 #endif /* _UAPI_ASM_IA64_UNISTD_H */