irqchip/irq-bcm7038-l1: Guard uses of cpu_logical_map

cpu_logical_map is only defined for CONFIG_SMP builds, when we are in an
UP configuration, the boot CPU is 0.

Fixes: 6468fc18b006 ("irqchip/irq-bcm7038-l1: Add PM support")
Reported-by: kernel test robot <[e-mail]>
Signed-off-by: Florian Fainelli <[e-mail]>
Signed-off-by: Marc Zyngier <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/irqchip/irq-bcm7038-l1.c

···
 	u32 val;
 
 	/* Wakeup interrupt should only come from the boot cpu */
+#ifdef CONFIG_SMP
 	boot_cpu = cpu_logical_map(0);
+#else
+	boot_cpu = 0;
+#endif
 
 	list_for_each_entry(intc, &bcm7038_l1_intcs_list, list) {
 		for (word = 0; word < intc->n_words; word++) {
···
 	struct bcm7038_l1_chip *intc;
 	int boot_cpu, word;
 
+#ifdef CONFIG_SMP
 	boot_cpu = cpu_logical_map(0);
+#else
+	boot_cpu = 0;
+#endif
 
 	list_for_each_entry(intc, &bcm7038_l1_intcs_list, list) {
 		for (word = 0; word < intc->n_words; word++) {