leaudio: Fix switching from Live to Game context

Android does assumptions on possible bidirectional context types and use
it when aligning metadata while creating stream.

Some devices uses e.g. Game and Voiceassistant as unidirection which
later breaks a logic when decision is taken about stream
reconfiguration.
E.g. we could incorrectly reconfigure stream from existing LIVE to
unidirectional GAME while recording.

This patch should fix it.

Bug: 375334939
Flag: Exempt, regression tested with unit tests and new test added.
Test: atest bluetooth_le_audio_test
Change-Id: I0ff5513ffb768f6e9e28ef05d87e53761e5259b6