cpufreq: pxa: use generic platdev driver for device-tree

For device-tree based pxa25x and pxa27x platforms, cpufreq-dt driver is
doing the job as well as pxa2xx-cpufreq, so add these platforms to the
compatibility list.

This won't work for legacy non device-tree platforms where
pxa2xx-cpufreq is still required.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpufreq/cpufreq-dt-platdev.c

@@ -37,6 +37,8 @@ static const struct of_device_id machines[] __initconst = {
 	{ .compatible = "fsl,imx7d", },
 
 	{ .compatible = "marvell,berlin", },
+	{ .compatible = "marvell,pxa250", },
+	{ .compatible = "marvell,pxa270", },
 
 	{ .compatible = "samsung,exynos3250", },
 	{ .compatible = "samsung,exynos4210", },