Skip test.java.util.TestFormatter on gcstress debug config

test.java.util.TestFormatter had an expectation of EXEC_FAILED but seems
to be working now. On gcstress debug config it is failing with ERROR so
update expectations to reflect this.

Bug: 313922528
Test: art/test.py
Change-Id: I563db96254cb847dc5ebf82f8870a9d45af63390
2 files changed