uboot-phytec

MLK-14779 mx6qdlsabreauto: Fix usb detect issue

The recent ehci-mx6 driver can support vbus-supply property, no need
to request io expander pins in usb setup. If did this, the regulator
for vbus-supply will fail to get due to the pin is occupied.

Signed-off-by: Ye Li <ye.li@nxp.com>