Add VTS for FilterDelayHint

The VTS can be configured by adding timeDelayInMs and dataDelayInBytes
attributes to the VTS configuration's filter tags (as long as the filter
is not a media filter (media filters do not support FilterDelayHints)).

In order to circumvent a FilterDelayHint race condition around
configuring the hint (where the internal condition variable is notified
when the delay hint changes. If the scheduler thread has not been
scheduled to run before adjusting the delay hint, and callbacks are
added right after, they are always sent out immediately (as the cv predicate
still returns true when it is first evaluated after adjusting the delay)).

Test: atest VtsHalTvTunerTargetTest
Test: atest android.media.tv.tuner.cts
Bug: 183057734
CTS-Coverage-Bug: 209593343
Change-Id: I1b0893afce262b18ee385ec0f384e6ceebf58c7d