initvals: Update initivals for AR9565

* Register Modification for xLNA board.
* TX gain table modification for zero calibration.
* AUX chain (LNA2) sensitivity enhancement
* Modify diversity bias default setting in INI.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>