Migrate to audio V4
The new devices must ship with audio HAL V4.
Note: there are no CleanSpec.mk in Cuttlefish.
This does not break incremental build, it just leaves
small unused V2 libraries on the vendor partition
until the next clean build.
Intentionally empty. This was a P specific change
Bug: 38184704
Test: the same change was tested on Pixel 1 and 2
It could not be tested on this device due to hardware not
available.
Change-Id: I31d91448144a7776ba4f95c29a37b577c4343441
Signed-off-by: Kevin Rocard <krocard@google.com>
