EXYNOS5250: Add support cpufreq for EXYNOS5250

This patch adds support cpufreq for EXYNOS5250 SoC. Basically,
the exynos-cpufreq.c is used commonly and exynos5250-cpufreq.c
is used for EXYNOS5250(two Cortex-A15 cores) SoC.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Dave Jones <davej@redhat.com>

drivers/cpufreq/exynos-cpufreq.c

@@ -256,6 +256,8 @@ static int __init exynos_cpufreq_init(void)
 		ret = exynos4210_cpufreq_init(exynos_info);
 	else if (soc_is_exynos4212() || soc_is_exynos4412())
 		ret = exynos4x12_cpufreq_init(exynos_info);
+	else if (soc_is_exynos5250())
+		ret = exynos5250_cpufreq_init(exynos_info);
 	else
 		pr_err("%s: CPU type not found\n", __func__);