Add new Atheros AR6003 hw2.0 firmware drop

Add new Atheros AR6003 hw2.0 firmware drop 3.0.0.233

License file has changed - these changes were approved by legal 21-Dec-10

Picked up from:

http://bombadil.infradead.org/~mcgrof/firmware/ath6kl/AR6K_FW.3.0_RC.233.tar.bz2

Code review was:

http://codereview.chromium.org/3581009/

   Updating the firmware to build 3.0.0.233. The new firmware fixes some
   defects and changes the license to reflect the upstream version for
   atheros firmware binaries. "

   The following tests were carried out on a testbed with x86 machines
   running ChromiumOS and an ARM platform running Ubuntu with a kernel
   identical to Chromium OS. Pls note that the test cycle was carried
   out on a build slightly older than this one.
      - Security
      - Scanning
      - Roaming
      - DFS
      - Performance
      - 11n Interoperability
      - Stress
      - 11n WiFi
      - uAPSD
   Some of the defects identified from the above tests were fixed in
   the driver/firmware and spot tested.

BUG=chromiumos-10162
TEST=run on seaboard, connect to AP, browse a few web sites

Change-Id: If18087a13fcb512f7e4a21907d5aa0fbf7a12cac

Committed: http://chrome-svn/viewvc/chromeos?view=rev&revision=23bd0d5

[sjg, 2011-01-03 19:51:43]

New firmware now approved by legal

[Sam Leffler, 2011-01-04 18:11:24]

per off-line discussion this LGTM so we can move forward on testing