usb: typec: ucsi: Report power supply changes

When the ucsi power supply goes online/offline, and when the
power levels change, the power supply class needs to be
notified so it can inform the user space.

Fixes: 992a60ed ("usb: typec: ucsi: register with power_supply class")
Cc: stable@vger.kernel.org
Reported-and-tested-by: Vladimir Yerilov <openmindead@gmail.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201110120547.67922-1-heikki.krogerus@linux.intel.com


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