arm64: dts: qcom: msm8998-xperia: Add support for wcn3990 Bluetooth

This platform uses the WCN3990 Bluetooth chip, reachable on UART-3.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210909123733.367248-3-angelogioacchino.delregno@somainline.org

arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino.dtsi

@@ -175,6 +175,22 @@ &blsp1_i2c5_sleep {
 	bias-disable;
 };
 
+&blsp1_uart3 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn3990-bt";
+
+		vddio-supply = <&vreg_s4a_1p8>;
+		vddxo-supply = <&vreg_l7a_1p8>;
+		vddrf-supply = <&vreg_l17a_1p3>;
+		vddch0-supply = <&vreg_l25a_3p3>;
+		max-speed = <3200000>;
+
+		clocks = <&rpmcc RPM_SMD_RF_CLK2_PIN>;
+	};
+};
+
 &blsp2_uart1 {
 	status = "okay";
 };