hwmon: (asus-ec-sensors) add missing comma in board name list.

This fixes a regression where coma lead to concatenating board names
and broke module loading for C8H.

Fixes: 5b4285c5 ("hwmon: (asus-ec-sensors) fix Formula VIII definition")

Signed-off-by: Michael Carns <mike@carns.com>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220615122544.140340-1-eugene.shalygin@gmail.com


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