arm: dts: imx6qdl-gw552x.dtsi: fix VBUS supply

Remove the invalid 'regulator-always-on' property to resolve:
starting USB...
Bus usb@2184000: Error enabling VBUS supply (ret=-13)
probe failed, error -13
Bus usb@2184200: USB EHCI 1.00

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
1 file changed