proto: Add state for RPM functionality

RPM functionality can be provided by RPM or by servo.

BUG=b:159957113
TEST=none

Change-Id: I1ff744250fabd8d1dc5dd1ff4a60683f123ac446
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2578757
Commit-Queue: Otabek Kasimov <otabek@google.com>
Reviewed-by: Xixuan Wu <xixuan@chromium.org>
2 files changed