hwmon: (drivetemp) Add module alias

Adding a MODULE_ALIAS() to drivetemp will make the driver easier
for modprobe to autoprobe.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220712214624.1845158-1-linus.walleij@linaro.org
Fixes: 5b46903d

 ("hwmon: Driver for disk and solid state drives with temperature sensors")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>