Provisioning 3.0: Changes to Provisioning and Service Certs.

[ Merge of http://go/wvgerrit/23360 ]

Service Certificates are used in two places, provisioning and
licensing. The service certificate code depended on a session_id
to get and set the service certificate properties, but the session_id
was not available in the provisioning path.

This patch pulls out the property lookup by session_id dependency,
and passes the CdmImpl's property_set into the provisioning code, so
the service certificate can be read and written there.

Bug: 62972441

Test: WV unit/integration tests. This introduces three test failures
  * WvCdmRequestLicenseTest.PrivacyModeWithServiceCertificateTest
  * Cdm/WvCdmStreamingLicenseRenewalTest.WithClientId/4
  * Cdm/WvCdmOfflineLicenseReleaseTest.WithClientId/3

Change-Id: I6e9d4e23a9e7e81a63a994db8ec0b443893449a6

libwvdrmengine/cdm/src/wv_content_decryption_module.cpp

@@ -353,8 +353,10 @@ void WvContentDecryptionModule::NotifyResolution(const CdmSessionId& session_id,
 
 bool WvContentDecryptionModule::IsValidServiceCertificate(
     const std::string& certificate) {
-  return ServiceCertificate::VerifySignedServiceCertificate(certificate) ==
-         NO_ERROR;
+  ServiceCertificate cert;
+  CdmResponseType status = cert.Init(certificate);
+  if (status != NO_ERROR) return false;
+    return cert.HasCertificate();
 }
 
 void WvContentDecryptionModule::GetSerializedMetrics(