4069e72102
[ Merge of http://go/wvgerrit/23161 ] The usage table redesign will require storing usage table headers and usage entries in non-secure persistent store. This information will be signed by the TEE to prevent against modification. New Storage and retrieval methods have been added for usage table headers, while usage entries will be stored alongside (offline) licenses and (secure stops/)usage info. b/34327459 Test: All unittests, including newly introduced ones other than some oemcrypto, request_license_test passed. Those tests failed with or without this CL. Change-Id: I9b8d6210e33774b0803f8af1711b2d593d467aec