Set the temporary CAP uuid

The value would be changed after the specification published.

Ignore-AOSP-First: the value could not be published on aosp now.
Bug: 150670922
Bug: 204952580
Test: atest --host bluetooth_le_audio_test bluetooth_le_audio_client_test
Change-Id: I09be98b4f1b2fe37b8c24b71e111a36d3e482862