Move Servo related modules to server/cros/servo.

Creating a subdirectory to hold all the modules so as to make the
boundary between Servo and Autotest a little more pronounced.

BUG=None
TEST=None

Change-Id: I976413dc50f66b6589b57a13a8dae7668634ced4
Reviewed-on: https://gerrit.chromium.org/gerrit/45158
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Commit-Queue: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
9 files changed