Pick widevine oemcrypto-v18 change

No-Typo-Check: From a third party header file
Bug: 260918793
Test: unit tests
Test: atp v2/widevine-eng/drm_compliance
Change-Id: I36effd6a10a99bdb2399ab1f4a0fad026d607c70

libwvdrmengine/oemcrypto/test/oemcrypto_serialization_version_test.cpp

@@ -9,6 +9,7 @@
 
 #include "OEMCryptoCENC.h"
 #include "log.h"
+#include "odk_structs.h"
 #include "oec_test_data.h"
 
 using namespace std;
@@ -26,6 +27,7 @@ class OEMCryptoTest : public ::testing::Test {
     LOGD("Running test %s.%s", test_info->test_case_name(), test_info->name());
     OEMCrypto_SetSandbox(kTestSandbox, sizeof(kTestSandbox));
     ASSERT_EQ(OEMCrypto_SUCCESS, OEMCrypto_Initialize());
+    OEMCrypto_EnterTestMode();
   }
 
   void TearDown() override {