ath5k: update LED table with reported devices

This patch adds support for Acer Ferrari 5000, and also specifies
the subsystem device ids for previously reported e-machines e510 and
Acer Aspire One A150.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>