arm64: dts: imx8mq-librem5: Remove dis_u3_susphy_quirk from usb_dwc3_0

This reduces power consumption in system suspend by about 10%.
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

@@ -1322,7 +1322,6 @@ &usb_dwc3_0 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 	dr_mode = "otg";
-	snps,dis_u3_susphy_quirk;
 	usb-role-switch;
 	status = "okay";