Use reference or pointer in tuner vts.

Bug: 188709323
Bug: 191825295
Test: VtsHalTvTunerV1_0TargetTest and VtsHalTvTunerV1_1TargetTest.
Change-Id: I93f2c9639033f8cb0f48de035e1c6ba488ea83e0
12 files changed