MLK-16431-3 imx8qxp_mek: Enable the USB3.0 XHCI driver

Enable the USB3.0 XHCI driver to support host mode on MEK board.
The USB3.0 typec on MEK board uses PTN5110 TCPC as cc logic and power control. Different like
the device on ARM2 board, this IC needs driver to control and get status through I2C bus.

In this patch, we simply call the TCPC API to set to DFP mode, check the CC status for SS MUX select
and enable source VBUS power. When the USB host is shutdown, disable the VBUS power.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 34be5a21002132b3908bf1aada7e15aa00353ce9)