arm64: dts: qcom: msm8994-kitakami: drop unit address from PMI8994 regulator

The PMIC regulators are not supposed to have unit addresses.

Fixes: e9783584 ("arm64: dts: qcom: msm8994-kitakami: Add VDD_GFX regulator")
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/20230312183622.460488-6-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi

@@ -173,8 +173,7 @@ &pmi8994_spmi_regulators {
 	 * power domain.. which still isn't enough and forces us to bind
 	 * OXILI_CX and OXILI_GX together!
 	 */
-	vdd_gfx: s2@1700 {
-		reg = <0x1700 0x100>;
+	vdd_gfx: s2 {
 		regulator-name = "VDD_GFX";
 		regulator-min-microvolt = <980000>;
 		regulator-max-microvolt = <980000>;