xtensa: wire up new syscalls

Wire up userfaultfd, membarrier, mlock2, copy_file_range, preadv2, pwritev2

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

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

@@ -754,7 +754,20 @@ __SYSCALL(340, sys_bpf, 3)
 #define __NR_execveat				341
 __SYSCALL(341, sys_execveat, 5)
 
-#define __NR_syscall_count			342
+#define __NR_userfaultfd			342
+__SYSCALL(342, sys_userfaultfd, 1)
+#define __NR_membarrier				343
+__SYSCALL(343, sys_membarrier, 2)
+#define __NR_mlock2				344
+__SYSCALL(344, sys_mlock2, 3)
+#define __NR_copy_file_range			345
+__SYSCALL(345, sys_copy_file_range, 6)
+#define __NR_preadv2				346
+__SYSCALL(346, sys_preadv2, 6)
+#define __NR_pwritev2				347
+__SYSCALL(347, sys_pwritev2, 6)
+
+#define __NR_syscall_count			348
 
 /*
  * sysxtensa syscall handler