microblaze: Wire-up seccomp syscall

Add new seccomp syscall.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/microblaze/include/uapi/asm/unistd.h b/arch/microblaze/include/uapi/asm/unistd.h
index 4e1ddc9..3fafcd2 100644
--- a/arch/microblaze/include/uapi/asm/unistd.h
+++ b/arch/microblaze/include/uapi/asm/unistd.h
@@ -399,5 +399,6 @@
 #define __NR_sched_setattr	381
 #define __NR_sched_getattr	382
 #define __NR_renameat2		383
+#define __NR_seccomp		384
 
 #endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */