[ARM] mmp2: add gpio initialization

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-mmp/irq-mmp2.c b/arch/arm/mach-mmp/irq-mmp2.c
index ddebde8..3ae1c54 100644
--- a/arch/arm/mach-mmp/irq-mmp2.c
+++ b/arch/arm/mach-mmp/irq-mmp2.c
@@ -104,7 +104,7 @@
 	}
 }
 
-void __init mmp2_init_irq(void)
+void __init mmp2_init_icu(void)
 {
 	int irq;