Fix issues in Tuner VTS Dvr testing

This CL fixes the following issues:
1. Modified some unnecessary or not proper debug msg in the VTS/Default
impl
2. Some incorrect VTS testing order
3. Added a flush test on Dvr status
4. Used a ts from Android aosp cts for testing
5. Changed the configuration to run with the new ts on cf
6. Fixed some deadlock and logic issues in the VTS/Default
implementation

Test: atest VtsHalTvTunerV1_0TargetTest
Bug: 150989084
Bug: 153366959
Bug: 153367094
Change-Id: If7eb8534caff4fc11ac4e166ef5391e8f543408d