Move audiosystem_tests of libaudioclient to presubmit

The tests are stable in postsubmit, moving to presubmit.

Bug: 215794103
Test: atest audiosystem_tests
Merged-In: I1d46e8879a7dcb04d256e10d8830695791bb4b5e
Change-Id: I1d46e8879a7dcb04d256e10d8830695791bb4b5e
(cherry picked from commit 425c4b13527be6c7a82d6ecc8a2286cb8c443e3f)
1 file changed