arm64: dts: qcom: sc7280: Drop redundant phy-names from DSI controller

phy-names has been marked deprecated. Remove it from the sc7280 DSI
controller block.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220907000105.786265-8-bryan.odonoghue@linaro.org

arch/arm64/boot/dts/qcom/sc7280.dtsi

@@ -3959,7 +3959,6 @@ mdss_dsi: dsi@ae94000 {
 				power-domains = <&rpmhpd SC7280_CX>;
 
 				phys = <&mdss_dsi_phy>;
-				phy-names = "dsi";
 
 				#address-cells = <1>;
 				#size-cells = <0>;