audio: Fix stream cleanup sequence

Move the cleanup of the stream worker thread from '~StreamCommonImpl'
up to concrete stream implementations. This is because when
the worker thread is stopping, it calls 'DriverInterface::shutdown'
method of the stream. At the time when '~StreamCommonImpl' is
running, the concrete stream class has already been destroyed.

The cleanup actually only happens in the case when the client
did not close the stream properly via 'IStreamCommon.close', or
when the stream creation has failed in the middle.

Bug: 355804294
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Ie86f682af202976ed48d24338b2dffcfd20d9a76