BCM4321 support

[Octavian Voicu]

Some extra debug output from inserting the module with verbose=3:

[ 4887.725591] b43-phy0: Broadcom 4321 WLAN found (core revision 12)
[ 4887.820235] b43-phy0 debug: Found PHY: Analog 5, Type 4, Revision 2
[ 4887.820268] b43-phy0 debug: Found Radio: Manuf 0x17F, Version
0x2055, Revision 4
[ 4887.886958] Broadcom 43xx driver loaded [ Features: PNL, Firmware-ID: FW13 ]
[ 4888.170254] b43-phy0: Loading firmware version 508.1084 (2009-01-14 01:32:01)
[ 4888.330209] b43-phy0 debug: Chip initialized
[ 4888.330470] b43-phy0 debug: 64-bit DMA initialized
[ 4888.330544] b43-phy0 debug: QoS enabled
[ 4888.371215] b43-phy0 debug: Wireless interface started
[ 4888.371258] b43-phy0 debug: Adding Interface type 2

Octavian