Add parcelable test for classes in libaudiofoundation.

Add parcelable test by writing the objects to Parcel and then reading
the objects to check parcelable functions work as expected.

Test: atest audiofoundation_parcelable_test
Bug: 135621476
Change-Id: I1d2263f0fe91e80b9262501372fde5e104469988
Merged-In: I1d2263f0fe91e80b9262501372fde5e104469988