mxc: turn to soc specific init_irq functions

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c
index ee331fd..776c0ee 100644
--- a/arch/arm/mach-mx3/armadillo5x0.c
+++ b/arch/arm/mach-mx3/armadillo5x0.c
@@ -352,7 +352,7 @@
 	.io_pg_offst	= ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.map_io		= mx31_map_io,
-	.init_irq	= mxc_init_irq,
+	.init_irq	= mx31_init_irq,
 	.timer		= &armadillo5x0_timer,
 	.init_machine	= armadillo5x0_init,
 MACHINE_END