thermal: thermal_hwmon: Revert recent message adjustment

For the sake of consistency, revert the second part of the
thermal_hwmon.c hunk from commit dec07d39 ("thermal: Don't use
'device' internal thermal zone structure field") after the first
part of it has been reverted.

Link: https://lore.kernel.org/linux-pm/5b084360-898b-aad0-0b8e-33acc585d71d@linaro.org


Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>