qcacld-3.0: Use vdev_id in gateway_update_req_param
Change I84b28aa734b570f0a7834fbac7d27e9c66b8b026 ("qcacmn: Replace
session_id in gateway_update_req_param") is renaming the legacy
identifier session_id to vdev_id, so concurrently change the usage in
the legacy project.
Change-Id: I2d24a54e80931a944580e968a841679d2da7b2a1
CRs-Fixed: 2404013