irqchip/loongson: Fix syscore ops registration

LoongArch inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6ONTH

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

In irq-loongson-eiointc and irq-loongson-pch-pic, syscore
ops is registrated two times, which will break the syscore
ops list.
Signed-off-by: NJianmin Lv <lvjianmin@loongson.cn>
Change-Id: I87d4af80afbe5397c25a8d799e844528650c9e2c

drivers/irqchip/irq-loongson-eiointc.c

@@ -429,10 +429,12 @@ int __init eiointc_acpi_init(struct irq_domain *parent,
 	parent_irq = irq_create_mapping(parent, acpi_eiointc->cascade);
 	irq_set_chained_handler_and_data(parent_irq, eiointc_irq_dispatch, priv);
 
-	register_syscore_ops(&eiointc_syscore_ops);
-	cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING,
+	if (nr_pics == 1) {
+		register_syscore_ops(&eiointc_syscore_ops);
+		cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING,
 				  "irqchip/loongarch/intc:starting",
 				  eiointc_router_init, NULL);
+	}
 
 	if (cpu_has_flatmode)
 		node = cpu_to_node(node * CORES_PER_EIO_NODE);

drivers/irqchip/irq-loongson-pch-pic.c

@@ -305,7 +305,8 @@ static int pch_pic_init(phys_addr_t addr, unsigned long size, int vec_base,
 	pch_pic_handle[nr_pics] = domain_handle;
 	pch_pic_priv[nr_pics++] = priv;
 
-	register_syscore_ops(&pch_pic_syscore_ops);
+	if (nr_pics == 1)
+		register_syscore_ops(&pch_pic_syscore_ops);
 
 	return 0;