arm64: dts: qcom: sm8250: Define ports for qmpphy orientation-switching

ports for orientation switching input and output. The individual board dts
files will instantiate port@0, port@1 and/or port@2 depending on the supported
feature-set.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20230816115151.501736-3-bryan.odonoghue@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sm8250.dtsi

@@ -3887,6 +3887,23 @@ usb_1_qmpphy: phy@88e8000 {
 
 			#clock-cells = <1>;
 			#phy-cells = <1>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+				};
+
+				port@1 {
+					reg = <1>;
+				};
+
+				port@2 {
+					reg = <2>;
+				};
+			};
 		};
 
 		usb_2_qmpphy: phy@88eb000 {