arm64: dts: qcom: trogdor: Add labels for type-c ports

Some trogdor board variants only have one USB port, so add a couple
labels to these ports so we can modify them later.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200914232218.658664-1-swboyd@chromium.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi

@@ -544,7 +544,7 @@ typec {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			connector@0 {
+			usb_c0: connector@0 {
 				compatible = "usb-c-connector";
 				reg = <0>;
 				label = "left";
@@ -553,7 +553,7 @@ connector@0 {
 				try-power-role = "source";
 			};
 
-			connector@1 {
+			usb_c1: connector@1 {
 				compatible = "usb-c-connector";
 				reg = <1>;
 				label = "right";