Audio HAL VTS: Fix style on modified files

In order to avoid style inconsistency as well as non functional
modification in following patches,
fix the style of all files modified for the fix of the VTS tests.

Patch generated with:
$ clang-format -i --style file -- <file list>

Bug: 36311550
Test: compile
Change-Id: I53dbcdabf959a6100e34a2ee4d0f951d525049cb