Add java.io 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: I9ccf82dfb0e2d2124fa6c9f5a58b398484b59d20
1 file changed
tree: b83359cf1507dab0e8cdfd467edec3a8f646293a
  1. ojluni/
  2. tools/
  3. EXPECTED_UPSTREAM