LoongArch: fix signal handler name changed

LoongArch inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6MUZX

--------------------------------

commit ad404010 ("entry: Add support for TIF_NOTIFY_SIGNAL")
changed then signal handler name from arch_do_signal to
arch_do_signal_or_restart,change the signal handler name for LoongArch
accordingly.
Signed-off-by: NHongchen Zhang <zhanghongchen@loongson.cn>
(cherry picked from commit e3874862)

arch/loongarch/kernel/signal.c

@@ -853,11 +853,11 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 	signal_setup_done(ret, ksig, 0);
 }
 
-void arch_do_signal(struct pt_regs *regs)
+void arch_do_signal_or_restart(struct pt_regs *regs, bool has_signal)
 {
 	struct ksignal ksig;
 
-	if (get_signal(&ksig)) {
+	if (has_signal && get_signal(&ksig)) {
 		/* Whee!  Actually deliver the signal.	*/
 		handle_signal(&ksig, regs);
 		return;