ath6kl: Updating firmware to 3.0.0.233

ath6kl: Updating firmware to 3.0.0.233

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.

Signed-off-by: Vipin Mehta <vmehta@atheros.com>;

BUG=
TEST=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.

[vipinmehta, 2010-10-01 22:48:35]

The patch upgrades the ath6k firmware to go with the following driver updates:

http://codereview.chromium.org/3561007
http://codereview.chromium.org/3579004