Update LoadTestKeybox

Merge from Widevine repo of http://go/wvgerrit/41662

This CL updates oemcrypto unit tests to use the new test keybox.

bug: 69552641 Update OEMCrypto_LoadTestKeybox

test: Unit tests compile and run -- many tests won't pass until merged
with vendor code

Change-Id: I73bdca3958b2c985d4c61801aa95807a2e6d4299

libwvdrmengine/oemcrypto/test/oec_device_features.cpp

@@ -171,7 +171,7 @@ void DeviceFeatures::PickDerivedKey() {
   }
   if (uses_keybox) {
     // If device uses a keybox, try to load the test keybox.
-    if (OEMCrypto_ERROR_NOT_IMPLEMENTED != OEMCrypto_LoadTestKeybox()) {
+    if (OEMCrypto_ERROR_NOT_IMPLEMENTED != OEMCrypto_LoadTestKeybox(NULL, 0)) {
       derive_key_method = LOAD_TEST_KEYBOX;
     } else if (IsTestKeyboxInstalled()) {
       derive_key_method = EXISTING_TEST_KEYBOX;