ARM: dts: ls1021a: Enable usb3-lpm-capable for usb3 node

Enable USB3 HW LPM feature.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/nxp/ls/ls1021a.dtsi

@@ -808,6 +808,7 @@ usb3: usb@3100000 {
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
+			usb3-lpm-capable;
 			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 		};