Make audio port in policy not derive from audio port base

This patch aims to make the structure for libaudiofoundation and policy
stuff simpler, including:
1. Make AudioPortBase as AudioPort in libaudiofoundation. Create
PolicyAudioPort that contains policy related stuff, which is used by
audiopolicy.
2. Make AudioPortConfigBase as AudioPortConfig in libaudiofoundation.
Create PolicyAudioPortConfig that contains policy related stuff.
3. DeviceDescriptor derives from AudioPort, AudioPortConfig, PolicyAudioPort
and PolicyAudioPortConfig. IOProfile derives from AudioPort,
PolicyAudioPort. AudioInputDescriptor/AudioOutputDescriptor derives from
AudioPortConfig, PolicyAudioPortConfig.

Test: atest AudioTrackTest, AudioRecordTest, AudioManagerTest
Test: atest audiopolicy_tests, AudioHostTest
Test: audio smoke test
Bug: 135621476
Change-Id: I40299d95dda3b3fc0ea88b079f2fe38d8f7e5b31
Merged-In: I40299d95dda3b3fc0ea88b079f2fe38d8f7e5b31