soc/intel/apollolake: ensure usb port 0 is in host mode

The controller for device mode USB is not plan of record
on apollolake. However, one still needs to configure the
one port to be host mode by default such that the devices
work as expected when plugged into the board.

BUG=chrome-os-partner:54581,chrome-os-partner:54656
TEST=Enabled xdci controller. Used USB type C->A dongle to
     check that a mass storage device worked on port 0 on
     reef.

Change-Id: Ia9ec5076491f31bc5dc3d534e235fb49f7b2efac
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15781
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
3 files changed