hwmon: (lm73) Add support for of_match_table

Add the of_match_table.

Signed-off-by: Henry Shen <henry.shen@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20200212030615.28537-3-henry.shen@alliedtelesis.co.nz


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