m32r: Add missing syscalls

Add the following 39 syscalls for m32r:
  sys_add_key, sys_request_key, sys_keyctl, sys_ioprio_set,
  sys_ioprio_get, sys_inotify_init, sys_inotify_add_watch,
  sys_inotify_rm_watch, sys_migrate_pages, sys_openat,
  sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat,
  sys_fstatat64, sys_unlinkat, sys_renameat, sys_linkat,
  sys_symlinkat, sys_readlinkat, sys_fchmodat, sys_faccessat,
  sys_pselect6, sys_ppoll, sys_unshare, sys_set_robust_list,
  sys_get_robust_list, sys_splice, sys_sync_file_range,
  sys_tee, sys_vmsplice, sys_move_pages, sys_getcpu, sys_epoll_pwait,
  sys_utimensat, sys_signalfd, sys_timerfd, sys_eventfd, sys_fallocate

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index 751ac2a..95aa798 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -284,3 +284,43 @@
         .long sys_mq_getsetattr
         .long sys_ni_syscall            /* reserved for kexec */
 	.long sys_waitid
+	.long sys_ni_syscall		/* 285 */ /* available */
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl
+	.long sys_ioprio_set
+	.long sys_ioprio_get		/* 290 */
+	.long sys_inotify_init
+	.long sys_inotify_add_watch
+	.long sys_inotify_rm_watch
+	.long sys_migrate_pages
+	.long sys_openat		/* 295 */
+	.long sys_mkdirat
+	.long sys_mknodat
+	.long sys_fchownat
+	.long sys_futimesat
+	.long sys_fstatat64		/* 300 */
+	.long sys_unlinkat
+	.long sys_renameat
+	.long sys_linkat
+	.long sys_symlinkat
+	.long sys_readlinkat		/* 305 */
+	.long sys_fchmodat
+	.long sys_faccessat
+	.long sys_pselect6
+	.long sys_ppoll
+	.long sys_unshare		/* 310 */
+	.long sys_set_robust_list
+	.long sys_get_robust_list
+	.long sys_splice
+	.long sys_sync_file_range
+	.long sys_tee			/* 315 */
+	.long sys_vmsplice
+	.long sys_move_pages
+	.long sys_getcpu
+	.long sys_epoll_pwait
+	.long sys_utimensat		/* 320 */
+	.long sys_signalfd
+	.long sys_timerfd
+	.long sys_eventfd
+	.long sys_fallocate