ARM: dts: qcom: msm8960: expressatt: Add Magnetometer

Add the Yamaha magnetometer. Mount Matrix is left as a TODO.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Link: https://lore.kernel.org/r/20251124-expressatt_nfc_accel_magn_light-v4-4-9c5686ad67e2@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: Rudraksha Gupta

arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts

@@ -487,3 +487,22 @@
 		pinctrl-names = "default";
 	};
 };
+
+&gsbi12 {
+	qcom,mode = <GSBI_PROT_I2C>;
+
+	status = "okay";
+};
+
+&gsbi12_i2c {
+	status = "okay";
+
+	magnetometer@2e {
+		compatible = "yamaha,yas532";
+		reg = <0x2e>;
+		vdd-supply = <&pm8921_l9>;
+		iovdd-supply = <&pm8921_lvs4>;
+
+		/* TODO: Figure out Mount Matrix */
+	};
+};