Update syslet system call numbers

System calls have been added to mainline while syslets has been pending.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/arch/arch-x86.h b/arch/arch-x86.h
index 574383a..7bb8ffb 100644
--- a/arch/arch-x86.h
+++ b/arch/arch-x86.h
@@ -19,10 +19,10 @@
 #endif
 
 #ifndef __NR_async_exec
-#define __NR_async_exec		320
-#define __NR_async_wait		321
-#define __NR_umem_add		322
-#define __NR_async_thread	323
+#define __NR_async_exec		325
+#define __NR_async_wait		326
+#define __NR_umem_add		327
+#define __NR_async_thread	328
 #endif
 
 #define	FIO_HUGE_PAGE		4194304