Update CC_LIST to point to the new mailing list.
Update CC_LIST to point to the new mailing list.

Now all skia reviews go through reviews@skia.org.

BUG=None
TEST=None
R=mtklein@google.com

Author: tfarina@chromium.org

Review URL: https://codereview.chromium.org/329883002

Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot