initvals: Update AR9340 baseband arrays

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
initvals: Mark ar9340Common_rx_gain_table_1p0 as a duplicate

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
inivals: Arrange AR9340 duplicates

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
initvals: Add ar9340Modes_low_ob_db_and_spur_tx_gain_table_1p0

Already present in ath9k.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>