arm64: dts: mt7622: add a bluetooth 5 device node

Add a built-in bluetooth 5 support for MT7622.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt7622.dtsi

@@ -530,6 +530,13 @@ btif: serial@1100c000 {
 		reg-shift = <2>;
 		reg-io-width = <4>;
 		status = "disabled";
+
+		bluetooth {
+			compatible = "mediatek,mt7622-bluetooth";
+			power-domains = <&scpsys MT7622_POWER_DOMAIN_WB>;
+			clocks = <&clk25m>;
+			clock-names = "ref";
+		};
 	};
 
 	nandc: nfi@1100d000 {