Bluetooth: hci_qca: enable Qualcomm WCN399x for AOSP extension

This patch enables Qualcomm WCN399x to support the AOSP extension.

Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Joseph Hwang <josephsih@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>