PR reviews needed: add EnGenius EAP1300EXT as alt device

These PRs are literally two lines each.

I have a series of pull requests open to add support for the EnGenius EAP1300EXT as an alt device of the EnGenius EAP1300:

Would someone please review them so they can be merged, or tell me what else is needed?

I've done extensive analysis of the vendor firmware, and have successfully tested EAP1300 builds on EAP1300EXT, so I am confident this works.

The PRs just add two lines to a config file.