usb: typec: ucsi: resume work after EC init

A manual EC sysjump will restart the PPM and break communication with
the UCSI driver by disabling notifications in the initial PPM state.
Update cros_ec_ucsi to listen for PPM init events and treat them as a
system resume to re-establish communication with the PPM (ChromeOS EC).

Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Łukasz Bartosik <ukaszb@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20250204024600.4138776-3-jthies@google.com


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