ARM: mediatek: enable gpt6 on boot up to make arch timer work on mt7623

GPT6 needs to be enabled on MT7623 for the arch timer to work.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm/mach-mediatek/mediatek.c

@@ -29,6 +29,7 @@ static void __init mediatek_timer_init(void)
 	void __iomem *gpt_base;
 
 	if (of_machine_is_compatible("mediatek,mt6589") ||
+	    of_machine_is_compatible("mediatek,mt7623") ||
 	    of_machine_is_compatible("mediatek,mt8135") ||
 	    of_machine_is_compatible("mediatek,mt8127")) {
 		/* turn on GPT6 which ungates arch timer clocks */