ARM: dts: qcom: ipq8064: add ipq8062 variant

ipq8062 SoC is based on ipq8064-v2.0 with lower supported freq, lack of
usb port and a reduced voltage output with the smb208 regulators.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220718161826.4943-2-ansuelsmth@gmail.com

arch/arm/boot/dts/qcom-ipq8062-smb208.dtsi

+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "qcom-ipq8062.dtsi"
+
+&rpm {
+	smb208_regulators: regulators {
+		compatible = "qcom,rpm-smb208-regulators";
+
+		smb208_s1a: s1a {
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s1b: s1b {
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s2a: s2a {
+			regulator-min-microvolt = < 800000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s2b: s2b {
+			regulator-min-microvolt = < 800000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+	};
+};

arch/arm/boot/dts/qcom-ipq8062.dtsi

+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "qcom-ipq8064-v2.0.dtsi"
+
+/ {
+	model = "Qualcomm Technologies, Inc. IPQ8062";
+	compatible = "qcom,ipq8062", "qcom,ipq8064";
+};