usb: typec: ucsi: yoga-c630: fake AltModes for port 0

EC firmware provides information about partner AltModes and handles the
DisplayPort AltMode internally, however it doesn't report AltModes of
the port to the host. Fake the DP AltMode for port0 in order to let
Linux bind displayport AltMode driver.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250621-c630-ucsi-v1-5-a86de5e11361@oss.qualcomm.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>