hwmon: (nct7802) convert to use maple tree register cache

hwmon: (nct7802) convert to use maple tree register cache

The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Link: https://lore.kernel.org/r/20240202072007.41316-1-liubo03@inspur.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>