b43-tools: b43-fwsquash.py: add new firmware files

This adds support for new firmware files from b43 and selects the ucode 
based on the PHY type now.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41592 3c298f89-4303-0410-b956-a3cf2f4a3e73