Add a thermal zone interface to the devices added
under jc42 driver. This way, thermal zones described
in device tree can make use of the of nodes of these
devices.

Cc: Guenter Roeck <linux@roeck-us.net> (maintainer:JC42.4 TEMPERATURE SENSOR DRIVER)
Cc: Jean Delvare <jdelvare@suse.com> (maintainer:HARDWARE MONITORING)
Cc: linux-hwmon@vger.kernel.org (open list:JC42.4 TEMPERATURE SENSOR DRIVER)
Cc: linux-kernel@vger.kernel.org (open list)
Signed-off-by: Eduardo Valentin <eduval@amazon.com>
Signed-off-by: Eduardo Valentin <evalenti@kernel.org>
Link: https://lore.kernel.org/r/20220318233011.13980-1-eduval@amazon.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>