Add sun.util classes into EXPECTED_UPSTREAM

The libcore-compare-upstreams tool is used to guess the version of each
file by comparing the diff.

Bug: 111603149
Test: ojluni_refresh_files
Change-Id: I8973fa7776e845d93c740f4a0e8d1303947ac116
1 file changed
tree: a5df6dfc4c742d2c868ca8ad337b94a4d6305deb
  1. ojluni/
  2. tools/
  3. EXPECTED_UPSTREAM