microblaze: Wire up userfaultfd, membarrier, mlock2 syscalls

Wire up new syscalls userfaultfd, membarrier and mlock2.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/unistd.h

@@ -38,6 +38,6 @@
 
 #endif /* __ASSEMBLY__ */
 
-#define __NR_syscalls         389
+#define __NR_syscalls         392
 
 #endif /* _ASM_MICROBLAZE_UNISTD_H */

arch/microblaze/include/uapi/asm/unistd.h

@@ -404,5 +404,8 @@
 #define __NR_memfd_create	386
 #define __NR_bpf		387
 #define __NR_execveat		388
+#define __NR_userfaultfd	389
+#define __NR_membarrier		390
+#define __NR_mlock2		391
 
 #endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */

arch/microblaze/kernel/syscall_table.S

@@ -389,3 +389,6 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat
+	.long sys_userfaultfd
+	.long sys_membarrier		/* 390 */
+	.long sys_mlock2