i.MX95 & i.MX8MP usb no-TypeC customization when use uuu tool

i.MX8MP and i.MX95 both support USB3.0. In EVK board, USB download pin is USB3.0 with Type-C. While in other boards, they may delete CC logic design PTN5110, or use USB2.0 signals instead.

This document describes how to modify U-Boot to support a design without PTN5110 when using the uuu tool to download.