Add missing instantiation code for Vts tests

Instantiation script is missing from the
wifi/1.4/vts/functional/wifi_nan_iface_hidl_test.cpp
wifi/1.4/vts/functional/wifi_chip_hidl_test.cpp

Bug: 149709807
Test: atest VtsHalWifiApV1_4TargetTest
Change-Id: Ifd4ac0adbdffa77381a60f48f830ebccb6535dfe
2 files changed