ARM: EXYNOS: Remove scu_enable from cpuidle

Cortex A9 based exynos4 has a memory mapped SCU while the Cortex
A15 based exynos5 does not. Hence, remove the call to scu_enable
for exynos5.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NInderpal Singh <inderpal.singh@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/cpuidle.c

@@ -116,7 +116,8 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
 	cpu_suspend(0, idle_finisher);
 
 #ifdef CONFIG_SMP
-	scu_enable(S5P_VA_SCU);
+	if (!soc_is_exynos5250())
+		scu_enable(S5P_VA_SCU);
 #endif
 	cpu_pm_exit();