Certificate provisioning proto updates

[ Merge of http://go/wvgerrit/117266 ]

These changes facilitate communication of provisioning errors from
provisioning service/SDK to the client.

Clients will indicate in the SignedProvisioningMessage whether they
support handling of error information in the ProvisioningResponse.
The provisioning service/SDK can then indicate why the provisioning
request is being rejected.

The protocol_version field from SignedProvisioningMessage has also been
broken into separate protocol version and provisioning type fields.
This will support changes planned for future releases.

Bug: 174174765
Test: WV unit/integration tests
Change-Id: Ic1a41ed8f83b69697300c586a78266fac20298fb

libwvdrmengine/cdm/core/src/certificate_provisioning.cpp

@@ -172,8 +172,8 @@ CdmResponseType CertificateProvisioning::SetSpoidParameter(
  * Return the provisioning protocol version - dictated by OEMCrypto
  * support for OEM certificates.
  */
-SignedProvisioningMessage::ProtocolVersion
-CertificateProvisioning::GetProtocolVersion() {
+SignedProvisioningMessage::ProvisioningType
+CertificateProvisioning::GetProvisioningType() {
   if (crypto_session_->GetPreProvisionTokenType() == kClientTokenOemCert)
     return SignedProvisioningMessage::PROVISIONING_30;
   else
@@ -291,7 +291,7 @@ CdmResponseType CertificateProvisioning::GetProvisioningRequest(
   SignedProvisioningMessage signed_provisioning_msg;
   signed_provisioning_msg.set_message(serialized_message);
   signed_provisioning_msg.set_signature(request_signature);
-  signed_provisioning_msg.set_protocol_version(GetProtocolVersion());
+  signed_provisioning_msg.set_provisioning_type(GetProvisioningType());
   if (core_message.empty()) {
     // OEMCrypto does not support core messages.
     supports_core_messages_ = false;