LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist

After commit 7c405fb327 ("rcu: Use an intermediate irq_work to
start process_srcu()"), Loongson-2K0300/2K0500 fail to boot. Because
IRQ_WORK need IPI but Loongson-2K0300/2K0500 don't have IPI HW.

So make arch_irq_work_has_interrupt() return true only if IPI HW exist.

Cc: stable@vger.kernel.org
Reported-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

arch/loongarch/include/asm/irq_work.h

@@ -4,7 +4,7 @@
 
 static inline bool arch_irq_work_has_interrupt(void)
 {
-	return IS_ENABLED(CONFIG_SMP);
+	return IS_ENABLED(CONFIG_SMP) && cpu_opt(LOONGARCH_CPU_CSRIPI);
 }
 
 #endif /* _ASM_LOONGARCH_IRQ_WORK_H */