arm64: dts: qcom: msm8994-msft-lumia-octagon: drop unit address from PMI8994 regulator

The PMIC regulators are not supposed to have unit addresses.

Fixes: 60b214ef ("arm64: dts: qcom: msm8994-octagon: Configure regulators")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230312183622.460488-7-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi

@@ -540,8 +540,7 @@ hd3ss460_en: en-high-state {
 };
 
 &pmi8994_spmi_regulators {
-	vdd_gfx: s2@1700 {
-		reg = <0x1700 0x100>;
+	vdd_gfx: s2 {
 		regulator-min-microvolt = <980000>;
 		regulator-max-microvolt = <980000>;
 	};