Create private-bin builds for most boards.
Create private-bin builds for most boards.

Also did a little misc cleanup of leftover comments and an accidentally
duplicated entry.

BUG=chromiumos:15795
TEST=Unittests

Change-Id: Ib3ba158cfd432f5b137b942be3ac476477364f65
Reviewed-on: http://gerrit.chromium.org/gerrit/1743
Reviewed-by: Scott Zawalski <d0bc454f32175e2361d26fbdb5930ff6be11acc5@chromium.org>
Reviewed-by: Chris Sosa <959d3d631fb6f17f1b07f751372041a1edb210d1@chromium.org>
Tested-by: Don Garrett <546ec366615570e68497e3c5df9092106a9808f4@chromium.org>

zhang0137/chromite,coreos/chromite,chadversary/chromiumos.chromite,chadversary/chromiumos.chromite,zhang0137/chromite,zhang0137/chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,coreos/chromite