Use staging provisioning server even more

Merge from Widevine repo of http://go/wvgerrit/94745

I missed a few in http://go/wvgerrit/94067

Test: ran unit tests
Bug: 149622735
Change-Id: I2289adb05bbd41376528e09bbaa62430644a3e20

libwvdrmengine/cdm/test/cdm_extended_duration_test.cpp

@@ -454,7 +454,7 @@ class WvCdmExtendedDurationTest : public WvCdmTestBase {
         kEmptyServiceCertificate, &key_msg_, &provisioning_server_url);
     EXPECT_EQ(NO_ERROR, status);
     if (NO_ERROR != status) return;
-    EXPECT_EQ(provisioning_server_url, config_.provisioning_server());
+    EXPECT_EQ(provisioning_server_url, kDefaultProvisioningServerUrl);
 
     std::string response =
         GetCertRequestResponse(config_.provisioning_server());