dt-bindings: usb: Add binding for TI USB8041 hub controller

dt-bindings: usb: Add binding for TI USB8041 hub controller

The TI USB8041 is a USB 3.0 hub controller with 4 ports.

This initial version of the binding only describes USB related aspects
of the USB8041, it does not cover the option of connecting the controller
as an i2c slave.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220727093801.687361-1-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>