Developers on the ChromeOS team generally want to be notified to
review changes that affect Chromebook device tree files. While we
could individually add developers, the set of developers and the time
each one has available to review patches will change over time. Let's
try adding a group list as a reviewer and see if that's an effective
way to manage things.

A few notes:
* Though this email address is actually backed by a mailing list, I'm
  adding it as "R"eviewer and not "L"ist since it's not a publicly
  readable mailing list and it's intended just to have a few people on
  it. This also hopefully conveys a little more responisbility for the
  people that are part of this group.
* I've added all sc7180 and sc7280 files here. At the moment I'm not
  aware of any non-Chromebooks being supported that use these
  chips. If later something shows up then we can try to narrow down.
* I've added "sdm845-cheza" to this list but not the rest of
  "sdm845". Cheza never shipped but some developers still find the old
  developer boards useful and thus it continues to get minimal
  maintenance. Most sdm845 device tree work, however, seems to be for
  non-Chromebooks.

Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230330141051.1.If8eb4f30cb53a00a5bef1b7d3cc645c3536615ec@changeid