Add host-side code for wifi HAL test

Test: make vts -j30 BUILD_GOOGLE_VTS=true TARGET_PRODUCT=aosp_arm64 &&
vts-tradefed run commandAndExit vts --skip-all-system-status-check
--primary-abi-only --skip-preconditions --module HalWifiHidlTargetTest
-l INFO

Bug: 34179464
Change-Id: I70c9495a5f2cb0c726373969ada5e33a00cc4c18
6 files changed