Resolve "ASAN: Memory leak in MC to BINAURAL_ROOM decoding with bitrate switching"

• Related issues: #1068 (closed)
• Requested reviewers:

Reason why this change is needed

• Fix memory leak for MC BR switching + head rotation

Description of the change

• deallocate EFAP handle correctly

Affected operating points

• MC 5.1 + BR switching and head rotation
• All is BE
• no IO issues

Related to #1068 (closed)