Follow coding conventions

Remove explicit struct qualifiers and rename structure types.

Signed-off-by: Paul Brook <paul@codesourcery.com>
diff --git a/hw/mst_fpga.c b/hw/mst_fpga.c
index c7bda34..84eedb7 100644
--- a/hw/mst_fpga.c
+++ b/hw/mst_fpga.c
@@ -216,7 +216,7 @@
 	return 0;
 }
 
-qemu_irq *mst_irq_init(struct pxa2xx_state_s *cpu, uint32_t base, int irq)
+qemu_irq *mst_irq_init(PXA2xxState *cpu, uint32_t base, int irq)
 {
 	mst_irq_state *s;
 	int iomemtype;