KVM: Move irqchip_in_kernel() from ioapic.h to irq.h

Moving irqchip_in_kernel() from ioapic.h to irq.h.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/ia64/kvm/irq.h b/arch/ia64/kvm/irq.h
index 604329a..c6786e8 100644
--- a/arch/ia64/kvm/irq.h
+++ b/arch/ia64/kvm/irq.h
@@ -23,5 +23,9 @@
 #ifndef __IRQ_H
 #define __IRQ_H
 
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	return 1;
+}
 
 #endif