[ Cherry pick of http://ag/15854889 ] [ Merge of http://go/wvgerrit/133943 and http://go/wvgerrit/134043 ] Certain OEMCrypto implementations will not report their provisioning method if the keybox is invalid. If the OEMCrypto implementation supports OTA keybox provisioning and does not report its provisioning method, then keybox provisioning is assumed. Bug: 187646550 Test: unit/integration/GtsMediaTestCases Change-Id: Ie7753546e53fc73fd59803958e88edf416ee5336