chromiumos/common.proto: order enums for backwards compat

BUG=chromium:1154747
TEST=./generate.py

Change-Id: I04c54d472526dd37ef75e116f4a8082fbf5a77fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2577591
Reviewed-by: George Engelbrecht <engeg@google.com>
Reviewed-by: LaMont Jones <lamontjones@chromium.org>
Commit-Queue: George Engelbrecht <engeg@google.com>
2 files changed