arm64: dts: imx8mp-venice-gw74xx: add USB DR support

Add support for USB DR on USB1 interface. Host/Device detection is done
using the usb-role-switch connector with a GPIO as USB1_OTG_ID is not
connected internally.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>