fixup! fixup! Enable webrtc-audio-processing by default
Fix the following crash error due to invalid enumeration value.
processor.c: pa_processor_get_method(498) > processing method is selected. request_method(reference_copy), method_to_string((null))
processor.c: pa_processor_new(169) > Assertion 'method < PA_PROCESSOR_METHOD_MAX' failed at src/echo-cancel/processor.c:169, function pa_processor_new(). Aborting.
[Version] 15.0.27
[Issue Type] Bug
Change-Id: I331fbea04be4a2d0471b916082f3da298c31a851