ath9k_hw: Update CCK spur mitigation for AR9462

To improve CCK sensitivity for AR9462 chips, performing
spur mitigation at 2440, 2464 frequencies alone is sufficient.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed