MAINTAINERS: Update maintainers for ChromeOS USBC related drivers

MAINTAINERS: Update maintainers for ChromeOS USBC related drivers

Add a few new members of ChromeOS USB team for the USB Type-C related
drivers for ChromeOS: cros_ec_typec, cros_ec_ucsi, and cros_usbpd_notify.

 Łukasz Bartosik <ukaszb@chromium.org>
 Jameson Thies <jthies@google.com>
 Andrei Kuchynski <akuchynski@chromium.org>

Prashant has also moved to a different team, so by his request, remove him
from maintainers of these drivers too.

Signed-off-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/Z5raIM_qhCF7oOB8@google.com
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>