hwmon: (lm75) separate probe into common and I2C parts

Put generic probe functionality into a separate function and let the I2C
driver call it. This is a preparation for adding I3C support which will
also use the generic probe function.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20241219225522.3490-11-wsa+renesas@sang-engineering.com


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