travis, analyzer disabled on test without debug, that does not run anway.  Turn off failing tests except one.  Update iOS test to xcode image 12.2.
travis, analyzer disabled on test without debug, that does not
run anway.  Turn off failing tests except one.  Update iOS test
to xcode image 12.2.

NLnetLabs/unbound,NLnetLabs/unbound,NLnetLabs/unbound,NLnetLabs/unbound