Add test for DatatypeFactory

Bug: 119393918
Bug: 200273920
Test: atest CtsLibcoreTestCases:libcore.javax.xml.datatype.DatatypeFactoryTest
Change-Id: I7a168a57c1c948a9a64befa2aea65eea77ab5117
(cherry picked from commit c3260f3f7841957244764a5fdc9e1fe313fce305)
Merged-In: I7a168a57c1c948a9a64befa2aea65eea77ab5117
1 file changed