ARM: pxa/z2: fix building error of pxa27x_cpu_suspend() no longer available

Cc: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/include/mach/pxa27x.h

 #ifndef __MACH_PXA27x_H
 #define __MACH_PXA27x_H
 
+#include <linux/suspend.h>
 #include <mach/hardware.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa27x.h>
@@ -21,6 +22,7 @@
 extern void __init pxa27x_map_io(void);
 extern void __init pxa27x_init_irq(void);
 extern int __init pxa27x_set_pwrmode(unsigned int mode);
+extern void pxa27x_cpu_pm_enter(suspend_state_t state);
 
 #define pxa27x_handle_irq	ichp_handle_irq
 

arch/arm/mach-pxa/z2.c

@@ -686,7 +686,8 @@ static void z2_power_off(void)
 	 */
 	PSPR = 0x0;
 	local_irq_disable();
-	pxa27x_cpu_suspend(PWRMODE_DEEPSLEEP, PLAT_PHYS_OFFSET - PAGE_OFFSET);
+	pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
+	pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
 }
 #else
 #define z2_power_off   NULL