Set important=True on samus-paladin and monroe-paladin.
Set important=True on samus-paladin and monroe-paladin.

When boards are set up, devs often forget to set important=True on
paladin builders, once they're finished being set up. Fix samus-paladin
and monroe-paladin.

BUG=chromium:343626
TEST=cbuildbot_config_unittest.py
TEST=Verify these boards are listed on the waterfall.

Change-Id: Id4f47fbedc11c1fd4f8981c7fa522b628e802caf
Reviewed-on: https://chromium-review.googlesource.com/186421
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Reviewed-by: Bernie Thompson <88a16a105b67ec86732da208bff06a7d4d211801@chromium.org>
Commit-Queue: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

chadversary/chromiumos.chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite