OpenJDK 11: update test expectations for 913-heaps

Update test expectations for 913-heaps as java.lang.Thread is being
updated as a part of OpenJDK 11 integration.

Bug: 199751232
Test: art/test.py --host -g
Change-Id: Ie6777d59d843dad6482e5d7f756b8ebd1ce6a287
1 file changed