Refactor VHAL

This CL contains the following modifications:
- Add INT64_VEC type
- Rename VehiclePropertyType:COMPLEX to MIXED
- Remove supportedAreas from VehiclePropConfig
- Allow an areaId to contain multiple zones/seats/windows
- Remove ROW_* zones
- Remove zone/areaId from subscribe() interface
- CLANG formatting

Bug: 72348165
Test:  Compiles
Change-Id: I274dc69b6532a06433a0409c7ca44d0a5bce65af