BCC supports two types of format: CBOR and X509. The latter will be
used by Chrome OS. In case of Prov4, BCC type will be queried by
OEMCrypto_GetBCCType() and the returned value is populated in the
provisioning request.
This CL adds X509 type to protobuf, a call from CDM to query BCC type
and OEMCrypto adapter changes for this call.
Test: run_fake_l1_tests, opk_ta_p40
Bug: 307969500
Change-Id: I88acc36da6cb413d537a9ea9dfd2a150d4557595