virt: fsl_hypervisor: Replace NO_IRQ by 0

NO_IRQ is used to check the return of irq_of_parse_and_map().

On some architecture NO_IRQ is 0, on other architectures it is -1.

irq_of_parse_and_map() returns 0 on error, independent of NO_IRQ.

So use 0 instead of using NO_IRQ.
Signed-off-by: NChristophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20dd37b96bac0a72caef28e7462b32c93487a516.1665033909.git.christophe.leroy@csgroup.euSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/virt/fsl_hypervisor.c

@@ -839,7 +839,7 @@ static int __init fsl_hypervisor_init(void)
 
 		handle = of_get_property(np, "interrupts", NULL);
 		irq = irq_of_parse_and_map(np, 0);
-		if (!handle || (irq == NO_IRQ)) {
+		if (!handle || !irq) {
 			pr_err("fsl-hv: no 'interrupts' property in %pOF node\n",
 				np);
 			continue;