ath9k: Update AR9331 v1.1 initvals

* Update radio/baseband/gain tables.
* Mark ar9331_modes_high_power_tx_gain_1p1 as a duplicate
* ar9331_1p1_mac_postamble is not a duplicate.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>