Audio V4: Remove all non extensible enum value

The CNT, MAX enum values had two drawbacks:
 - they were invalid enum value that were part of the enum
   thus enum validity check would validate them although those values
   are only expected to be use in loops/validation code.
 - they are not extensible by vendors

The *_ALL enum values were not extensible by vendors.

Those values can instead be replaced by treble enum iterator and
helper functions.

Bug: 38184704
Test: none
Change-Id: I1a9527bb7311088e0abe22eceee92d21d9171ca4
Signed-off-by: Kevin Rocard <krocard@google.com>
1 file changed