security_StatefulPermissions: allow attestation db ownership BUG=chrome-os-partner:46244 TEST=test_that security_StatefulPermissions Change-Id: Ie3287b1a7a676dfa3810ff186b38507438392d4c Reviewed-on: https://chromium-review.googlesource.com/315225 Commit-Ready: Darren Krahn <[email protected]> Tested-by: Darren Krahn <[email protected]> Reviewed-by: Jorge Lucangeli Obes <[email protected]> (cherry picked from commit 68562714163261015f142b8df14364c772515dcd) Reviewed-on: https://chromium-review.googlesource.com/318870 Reviewed-by: Darren Krahn <[email protected]> Tested-by: Jorge Lucangeli Obes <[email protected]>