nl_l3: change termination MAC comment
nl_l3: change termination MAC comment

The comment accompanying the termination MAC map declaration is wrong,
where it has ethertype should read address family

Signed-off-by: Rubens Figueiredo <22177f75c46bd149db738f8a1dfeab4c8cbd2d82@bisdn.de>

bisdn/basebox,bisdn/basebox,bisdn/basebox,bisdn/basebox