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.

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>
2 files changed