mxc: turn to soc specific init_irq functions

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx2/mx27pdk.c b/arch/arm/mach-mx2/mx27pdk.c
index 1d9238c..6761d1b 100644
--- a/arch/arm/mach-mx2/mx27pdk.c
+++ b/arch/arm/mach-mx2/mx27pdk.c
@@ -89,7 +89,7 @@
 	.io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 	.boot_params    = PHYS_OFFSET + 0x100,
 	.map_io         = mx27_map_io,
-	.init_irq       = mxc_init_irq,
+	.init_irq       = mx27_init_irq,
 	.init_machine   = mx27pdk_init,
 	.timer          = &mx27pdk_timer,
 MACHINE_END