Fix Tuner 1.0 default implementation Demux and Frontend mapping

The previous impl keeps the demux and frontend mapping in the
Tuner implementation even the instance has been closed.

Clean up the mapping and the local vectors in the Tuner impl
when Demux or Frontend is closed.

Test: atest VtsHalTvTunerV1_0TargetTest
Bug: 150952766
Change-Id: I2038e902ba7ab323c6dacc886ac6984ee7c475aa