hwmon: (lm75) simplify regulator handling

devm_regulator_get_enable() was introduced exactly to avoid open coding
regulator handling like in this driver. Make use of this helper.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20241219225522.3490-9-wsa+renesas@sang-engineering.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>