Log wtf for warn-on-blocking on eng builds

Log.wtf on eng builds when setWarnOnBlocking is enabled. Previously,
setWarnOnBlocking would only log a WTF on userdebug builds.

Bug: 32715088
Bug: 241131634
Test: Confirm eng build boots, and that calling
      Binder.setWarnOnBlocking(true) does not crash sysui
Change-Id: Iab416c58827db558d21e518c09af1dac1569ebe8
Merged-In: Iab416c58827db558d21e518c09af1dac1569ebe8