Inherit art_defaults in cc_library_headers as well.

To take art_defaults closer to a true global defaults used by
everything in the ART module. It has mostly compiler flags which aren't
applicable for header modules, but it may have other things as well,
notably min_sdk_version.

#codehealth

Test: Run-tests, gtests, libcore tests and libjdwp tests for host and
  device on master-art
Bug: 204364566
Change-Id: Iba53785a992894fe7e8209a520e7ad9ec32636a2
11 files changed