Hostapd: Add IHostapdVendor@1.2 HAL interface.

This adds new minor version 1.2 for IHostapdVendor. This adds
following support:
 - SAE_TRANSITION vendor key management.
 - VendorIfaceParams with 1.2@IHostapd IfaceParams and HwModeParams
 - VendorNetworkParams with 1.2@IHostapd NetworkParams

CRs-Fixed: 2654112
Change-Id: I153a28b92be8ca024ae80ca3e71bf1e101b0d9e5
2 files changed