Add tuner legacy HIDL HAL support.

The AIDL HAL based solution will be the default implementation. The
tuner service will only create the legacy HIDL HAL based implementation
when the HIDL HAL is available.

Bug: 191825295
Test: atest android.media.tv.tuner.cts on both AIDL and HIDL HAL.
Test: sampletunertvinput
Change-Id: I8436ae80721ad943c60b5814b535f3b87a54ccda