ARM: EXYNOS: Clear ENABLE_WAKEUP_SW bit when entering suspend

Setting this bit to 0 causes the system to wait until suspended
to use the wakeup masks.  With it being set high previously,
masked interrupts were being received and processed before the
EINT_WAKEUP_MASK was configured.
Signed-off-by: NJonathan Kliegman <kliegs@chromium.org>
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/include/mach/pm-core.h

@@ -27,13 +27,8 @@ static inline void s3c_pm_debug_init_uart(void)
 
 static inline void s3c_pm_arch_prepare_irqs(void)
 {
-	unsigned int tmp;
-	tmp = __raw_readl(S5P_WAKEUP_MASK);
-	tmp &= ~(1 << 31);
-	__raw_writel(tmp, S5P_WAKEUP_MASK);
-
-	__raw_writel(s3c_irqwake_intmask, S5P_WAKEUP_MASK);
 	__raw_writel(s3c_irqwake_eintmask, S5P_EINT_WAKEUP_MASK);
+	__raw_writel(s3c_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK);
 }
 
 static inline void s3c_pm_arch_stop_clocks(void)