Fix resource leaks for Audio Quality Verifier

Sometimes the CTS Verifier stopped unexpectedly during the test of Audio Quality Verifier.
The root cause is that there are some memory leaks in LinearityTest.cpp.
- The pointers are not deleted in LinearityTest.cpp

Signed-off-by: DennisLee <DennisLee@fih-foxconn.com>
Change-Id: I02266ba9ee46eafcc0ec63a3f0b4420ede0b55f9
1 file changed