configs: ten64: enable USB_ONBOARD_HUB (USB5744) option

configs: ten64: enable USB_ONBOARD_HUB (USB5744) option

Ten64 board revs A through C have a Microchip USB5744
hub on the board, which must be configured over I2C
at boot time to become usable.

This function has not been part of the mainline
U-Boot for this board until now, as a mainline driver
and device-tree binding is now available for the USB5744.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mathew McBride <matt@traverse.com.au>
Signed-off-by: Peng Fan <peng.fan@nxp.com>