ARM: EXYNOS: switch to using generic cpufreq driver for exynos5250

The new CPU clock type allows the use of generic CPUfreq driver.
Switch Exynos5250 to using generic cpufreq driver.

Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
[b.zolnierkie: split Exynos5250 support from the original patch]
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@dowhile0.org>
Tested-by: NJavier Martinez Canillas <javier@dowhile0.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

arch/arm/mach-exynos/exynos.c

@@ -226,6 +226,7 @@ static void __init exynos_init_irq(void)
 
 static const struct of_device_id exynos_cpufreq_matches[] = {
 	{ .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
+	{ .compatible = "samsung,exynos5250", .data = "cpufreq-dt" },
 	{ /* sentinel */ }
 };