Moved 'src/platform/chromiumos-wide-profiling' to 'src/platform2'

Moved chromiumos-wide-profiling to platform2 and excluded testdata
subdirectory from all the commits in the history to avoid import
of large amount of binary data to platform2 repo.

BUG=chromium:370269
TEST=None

Change-Id: I5f5a1d4ccdc666ffb44ad426018491b0cdde56b4
tree: b12c48dbd8ed1e28d7f3f7cf1cbaee7ea49fb2c3
  1. buffet/