Enable hwtest for board parrot64.
Enable hwtest for board parrot64.

Add label pool:bvt and pool:parrot64 to DUTs with platform parrot_2.
Enable vmtest as crbug.com/251309 is fixed.

BUG=chromium:289609,289448
TEST=none

Change-Id: I5c329413861108f5a811a4b127d1797787f25796
Reviewed-on: https://chromium-review.googlesource.com/168989
Reviewed-by: Dan Shi <ddf10325a07dcd5610d94b7b9f19da3abc09e645@chromium.org>
Commit-Queue: Dan Shi <ddf10325a07dcd5610d94b7b9f19da3abc09e645@chromium.org>
Tested-by: Dan Shi <ddf10325a07dcd5610d94b7b9f19da3abc09e645@chromium.org>

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