ath79: pqi-air-pen: adjust mac addresses

ath79: pqi-air-pen: adjust mac addresses

The original ar71xx version of this device used 1002 as mac address for
both ethernet and wireless. The ath79 version inexplicably changes this
to 2, which seems to be done nowhere else in ath79, indicating it's
bogus.

Restore previous ar71xx assignment. 1002 is used as an ethernet
interface with some other devices as well.

Also remove the bogus caldata userspace extraction. The size is bogus
and it's already handled in dts.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17083
Signed-off-by: John Crispin <john@phrozen.org>