Bluetooth: controller: ll_sw: nordic: Add DF antenna configuration handling

Add support for Direction Finding antenna configuration in
Nordic hal of Bluetooth controller.
Add handling of response for HCI_LE_Read_Antenna_Information
HCI command in controller (upper and lower link layer).
Handling of response to the command requires antenna matrix
configuration.

Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>