Audio: Update and fix copyHAL script

Make necessary updates and fixes to produce HAL V7 and VTS.

Bug: 142480271
Test: audio/common/all-versions/copyHAL.sh 6.0 7.0 &&
      atest --rebuild-module-info -b VtsHalAudioV7_0TargetTest &&
      m
Change-Id: I5bc2344dae611fbf7e3e0fef185deee999c4aefa