Return ERROR_INSUFFICIENT_OUTPUT_PROTECTION when appropriate

[ Merge from http://go/wvgerrit/17429 ]

This is to correct for when HDCP validation failure at the OEMCrypto level
ends up returning a CryptoException through MediaCrypto with error code
Unknown Error (-2998).

b/27849488

Change-Id: Ib3a9b1c3a17b9323f3d079a678cf88dedeec3b4b

libwvdrmengine/cdm/core/test/test_printers.cpp

@@ -341,6 +341,9 @@ void PrintTo(const enum CdmResponseType& value, ::std::ostream* os) {
       break;
     case DECRYPT_ERROR: *os                        << "DECRYPT_ERROR";
       break;
+    case INSUFFICIENT_OUTPUT_PROTECTION:
+      *os << "INSUFFICIENT_OUTPUT_PROTECTION";
+      break;
     default:
       *os                                          << "Unknown CdmResponseType";
       break;