[ Merge from http://go/wvgerrit/102303 ]
This adds an OEMCrypto test that ensures that usage entries can be
loaded and reloaded without issue within the same crypto client
lifecycle. This is in response to b/158273241 where certain entries
could not be reloaded if new entries are created and loaded in a
particular order.
Bug: 158619296
Test: OEMCrypto test on Android
Change-Id: Ib7422b2003e46a3ee27c6a591177a12d14e628bc
927c2f628b