art: Add FileDescriptor fields to native Core Platform API Adds descriptor and ownerId to whitelisted native Core Platform API. Bug: 144502743 Bug: 150680645 Test: art/test/run-test --host 001-HelloWorld Test: art/tools/run-libcore-tests.sh --mode=host --variant=X64 Change-Id: Ifd25daed95516b27eaae4b034fdc45f77ea25a74 Merged-In: Ifd25daed95516b27eaae4b034fdc45f77ea25a74