audio: Use auto-generated MicrophoneInfoFw class

Replace use of manually written MicrophoneInfo class
with MicrophoneInfoFw which is generated automatically
from the AIDL definition.

Bug: 263964254
Test: m
Change-Id: I61e842ad0dbad970c1b6ddfe6c72fcda83b5843c
Merged-In: I61e842ad0dbad970c1b6ddfe6c72fcda83b5843c
5 files changed