ARM: mmp: avoid to include head file in mach-mmp

pxa910_set_wake() & mmp2_set_wake() are both declared in head files
of arch/arm/mach-mmp/include/mach directory. If we include these
head files in irq-mmp driver, it blocks the multiplatform build.
So adjust the code.

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c
index c7592f1..a70b553 100644
--- a/arch/arm/mach-mmp/mmp2.c
+++ b/arch/arm/mach-mmp/mmp2.c
@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip/mmp.h>
 #include <linux/platform_device.h>
 
 #include <asm/hardware/cache-tauros2.h>
@@ -26,6 +28,7 @@
 #include <mach/mfp.h>
 #include <mach/devices.h>
 #include <mach/mmp2.h>
+#include <mach/pm-mmp2.h>
 
 #include "common.h"
 
@@ -94,6 +97,9 @@
 void __init mmp2_init_irq(void)
 {
 	mmp2_init_icu();
+#ifdef CONFIG_PM
+	icu_irq_chip.irq_set_wake = mmp2_set_wake;
+#endif
 }
 
 static int __init mmp2_init(void)
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index a586742..eb57ee1 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -12,6 +12,8 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip/mmp.h>
 #include <linux/platform_device.h>
 
 #include <asm/hardware/cache-tauros2.h>
@@ -23,6 +25,7 @@
 #include <mach/dma.h>
 #include <mach/mfp.h>
 #include <mach/devices.h>
+#include <mach/pm-pxa910.h>
 #include <mach/pxa910.h>
 
 #include "common.h"
@@ -80,6 +83,9 @@
 void __init pxa910_init_irq(void)
 {
 	icu_init_irq();
+#ifdef CONFIG_PM
+	icu_irq_chip.irq_set_wake = pxa910_set_wake;
+#endif
 }
 
 static int __init pxa910_init(void)