[ARM] mmp: move declarations into SoC specific header file from common.h

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-mmp/include/mach/mmp2.h b/arch/arm/mach-mmp/include/mach/mmp2.h
index fec220b..dbba6e8 100644
--- a/arch/arm/mach-mmp/include/mach/mmp2.h
+++ b/arch/arm/mach-mmp/include/mach/mmp2.h
@@ -1,6 +1,13 @@
 #ifndef __ASM_MACH_MMP2_H
 #define __ASM_MACH_MMP2_H
 
+struct sys_timer;
+
+extern struct sys_timer mmp2_timer;
+extern void __init mmp2_init_icu(void);
+extern void __init mmp2_init_irq(void);
+extern void mmp2_clear_pmic_int(void);
+
 #include <linux/i2c.h>
 #include <mach/devices.h>
 #include <plat/i2c.h>