arm64: dts: apq8096-db820c: Removed bt-en-1-8v regulator

This patch removes the unused bt-en-1-8v regulator and moves the
bt_en_gios claim to the pm8994_gpios node.

This bt_en_gpio could have been moved to the bluetooth serial node but
instead this node declares an 'enable' gpio addressing the bt_en_gpio.
This is needed by the Qualcomm QCA6174 WLAN/BT combo chip that needs to
have the bt_en_gpio claimed even if only WLAN is used.
Signed-off-by: NThierry Escande <thierry.escande@linaro.org>
Reviewed-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi

@@ -4,7 +4,7 @@
 &pm8994_gpios {
 
 	pinctrl-names = "default";
-	pinctrl-0 = <&ls_exp_gpio_f>;
+	pinctrl-0 = <&ls_exp_gpio_f &bt_en_gpios>;
 
 	ls_exp_gpio_f: pm8994_gpio5 {
 		pinconf {

arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi

@@ -179,19 +179,6 @@
 			pinctrl-0 = <&usb2_vbus_det_gpio>;
 		};
 
-		bt_en: bt-en-1-8v {
-			pinctrl-names = "default";
-			pinctrl-0 = <&bt_en_gpios>;
-			compatible = "regulator-fixed";
-			regulator-name = "bt-en-regulator";
-			regulator-min-microvolt = <1800000>;
-			regulator-max-microvolt = <1800000>;
-
-			/* WLAN card specific delay */
-			startup-delay-us = <70000>;
-			enable-active-high;
-		};
-
 		wlan_en: wlan-en-1-8v {
 			pinctrl-names = "default";
 			pinctrl-0 = <&wlan_en_gpios>;
@@ -212,7 +199,6 @@
 				status = "okay";
 				perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
 				vddpe-3v3-supply = <&wlan_en>;
-				vddpe1-supply = <&bt_en>;
 			};
 
 			pcie@608000 {