cpufreq: mediatek: add support of cpufreq to MT7622 SoC

MT7622 is a 64-bit ARMv8 based dual-core SoC (2 * Cortex-A53) with a
single cluster. The hardware is also compatible with the current driver,
so add MT7622 as one of the compatible string list.
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpufreq/mediatek-cpufreq.c

@@ -574,6 +574,7 @@ static struct platform_driver mtk_cpufreq_platdrv = {
 /* List of machines supported by this driver */
 static const struct of_device_id mtk_cpufreq_machines[] __initconst = {
 	{ .compatible = "mediatek,mt2701", },
+	{ .compatible = "mediatek,mt7622", },
 	{ .compatible = "mediatek,mt7623", },
 	{ .compatible = "mediatek,mt817x", },
 	{ .compatible = "mediatek,mt8173", },