qcacld-3.0: Harmonize the mlme_ht_info_field_2 layouts
Struct mlme_ht_info_field_2 has two different layouts depending upon
endinaness, but for one of the fields the naming does not match.
Rename the nonGFDevicesPresent field to be consistent with its
counterpart non_gf_devices_present.
Change-Id: Iafec9976d5f890ae6555af35c40186afacb5c325
CRs-Fixed: 2379073