Answer
While loading the lrdmwl.ko kernel object you will need to add the option SISO_mode. The value would depend on which antenna port is to be used.
SISO_mode:
0: WiFi --> ANT Wi-Fi & ANT Wi-Fi+BT ports
1: WiFi--> ANT Wi-Fi port
2: WiFi --> ANT Wi-Fi+BT port
You will need to terminate the unused antenna port with a 50 ohm terminator, otherwise, it could damage the PA of the unattached antenna port, due to energy rebounding during driver/firmware Initialization and you run the risk of not being able to leverage our certifications.