We want the argument pass to set_irq to be opaque

piix_pci want to pass more things that the pic

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/gt64xxx.c b/hw/gt64xxx.c
index 2115130..8f9ae4a 100644
--- a/hw/gt64xxx.c
+++ b/hw/gt64xxx.c
@@ -893,9 +893,10 @@
 
 static int pci_irq_levels[4];
 
-static void pci_gt64120_set_irq(qemu_irq *pic, int irq_num, int level)
+static void pci_gt64120_set_irq(void *opaque, int irq_num, int level)
 {
     int i, pic_irq, pic_level;
+    qemu_irq *pic = opaque;
 
     pci_irq_levels[irq_num] = level;