arm64: dts: qcom: apq8096-db820c: enable MSS node

APQ8096 provides a 'modem' with reduced functionality, mainly targeting
location services. Enable corresponding device tree node.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220403193911.1393920-3-dmitry.baryshkov@linaro.org

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

@@ -258,6 +258,12 @@ &mmcc {
 	vdd-gfx-supply = <&vdd_gfx>;
 };
 
+&mss_pil {
+	status = "okay";
+	pll-supply = <&vreg_l12a_1p8>;
+	firmware-name = "qcom/apq8096/mba.mbn", "qcom/apq8096/modem.mbn";
+};
+
 &pm8994_resin {
 	status = "okay";
 	linux,code = <KEY_VOLUMEDOWN>;