config: Revert featurization of 32 channel support in DSP

Remove the dependency on dedicated config flag for the
use of new API versions in ASM and ADM open commands.
Dependency is now on ADSP service version only.

Change-Id: I884e04fb6a3c8808e7874aa04967db0c3ca083c1
Signed-off-by: Dieter Luecking <dieterl@codeaurora.org>