Merge Vehicle HAL 2.1 iface to 2.0

Vehicle HAL is property based and all properties are considered
optional. It is quite a bit of pain to create new versions of VHAL only
to extend properties.

Bug: 64303350

Test: verified system works stable

Change-Id: I4c5c891236912651ca1341f7fd515e533a6b4506
25 files changed