cpufreq: berlin: Use generic platdev driver

The cpufreq-dt-platdev driver supports creation of cpufreq-dt platform
device now, reuse that and remove similar code from platform code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index 00da8c8b..3e1c821 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -12,6 +12,8 @@
 #include <linux/platform_device.h>
 
 static const struct of_device_id machines[] __initconst = {
+	{ .compatible = "marvell,berlin", },
+
 	{ .compatible = "samsung,exynos3250", },
 	{ .compatible = "samsung,exynos4210", },
 	{ .compatible = "samsung,exynos4212", },