am f66301bd: Report correct decrypted video length to OMX codec

* commit 'f66301bddb27f6dc5abb0fa0b4d368d7ff6c6840':
  Report correct decrypted video length to OMX codec

proprietary/wvm/WVMMediaSource.cpp

@@ -322,6 +322,12 @@ status_t WVMMediaSource::read(MediaBuffer **buffer, const ReadOptions *options)
             return status;
         }
 
+#ifdef REQUIRE_SECURE_BUFFERS
+        if (mESSelector == WV_EsSelector_Video) {
+            bytesRead = sDecryptContext[mESSelector].mOffset;
+        }
+#endif
+
         if (bytesRead == 0) {
             if (retryCount++ >= retryLimit) {
                 // If no data received within the retry limit, return ERROR_IO