audio: Enable use of 'expected_utils' for ScopedAStatus

Add necessary helper functions and use
RETURN_STATUS_IF_ERROR where possible.

Bug: 282568751
Test: atest VtsHalAudioCoreTargetTest
Merged-In: If68c995da0e5e0cb2e9c142ba40af6503ff628b2
Change-Id: If68c995da0e5e0cb2e9c142ba40af6503ff628b2
(cherry picked from commit 26dc9add)