Correct an error reported when a license is restored and then released

[ Merge of http://go/wvgerrit/128143 ]

Now reports LICENSE_STATE_ERROR rather than ERROR_DRM_GENERIC_PLUGIN
to make the cause of failure and suggested action more clear for app
developers. Also added an additional error log.

Bug: 190645000
Test: WV unit/integration tests
Change-Id: Ib23ca628c590316f90f497d8fdfbab24fd644d6f

libwvdrmengine/cdm/core/test/test_printers.cpp

@@ -887,6 +887,9 @@ void PrintTo(const enum CdmResponseType& value, ::std::ostream* os) {
     case USAGE_ENTRY_NUMBER_MISMATCH:
       *os << "USAGE_ENTRY_NUMBER_MISMATCH";
       break;
+    case USAGE_ENTRY_ALREADY_LOADED:
+      *os << "USAGE_ENTRY_ALREADY_LOADED";
+      break;
     case USAGE_GET_ENTRY_RETRIEVE_INVALID_STORAGE_TYPE:
       *os << "USAGE_GET_ENTRY_RETRIEVE_INVALID_STORAGE_TYPE";
       break;