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/src/crypto_session.cpp

@@ -715,6 +715,8 @@ CdmResponseType CryptoSession::Decrypt(const CdmDecryptionParameters& params) {
     case OEMCrypto_ERROR_DECRYPT_FAILED:
     case OEMCrypto_ERROR_UNKNOWN_FAILURE:
       return DECRYPT_ERROR;
+    case OEMCrypto_ERROR_INSUFFICIENT_HDCP:
+      return INSUFFICIENT_OUTPUT_PROTECTION;
     default:
       return UNKNOWN_ERROR;
   }