arm64: dts: qcom: sdm845-xiaomi-beryllium: drop invalid panel properties

Panel does not have children with unit-addresses thus address/size-cells
are not valid:

  sdm845-xiaomi-beryllium-tianma.dtb: panel@0: Unevaluated properties are not allowed ('#address-cells', '#size-cells' were unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230326155753.92007-10-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi

@@ -232,9 +232,6 @@ display_panel: panel@0 {
 		vddpos-supply = <&lab>;
 		vddneg-supply = <&ibb>;
 
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		backlight = <&pmi8998_wled>;
 		reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;