KVM: ppc: distinguish between interrupts and priorities

Although BOOKE_MAX_INTERRUPT has the right value, the meaning is not match.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 933c406..f192fbe 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -163,7 +163,7 @@
 	unsigned int priority;
 
 	priority = __ffs(*pending);
-	while (priority <= BOOKE_MAX_INTERRUPT) {
+	while (priority <= BOOKE_IRQPRIO_MAX) {
 		if (kvmppc_booke_irqprio_deliver(vcpu, priority))
 			break;