usb: typec: Return void in typec_partner_set_pd_revision

typec_partner_set_pd_revision doesn't need any return value.

Fixes: 29b01295 ("usb: typec: Add typec_partner_set_pd_revision")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210202095512.761214-1-kyletso@google.com


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