SM-T31x: Fix WVMExtractor failed to open libwvm.so

Change-Id: I495e04f6561c22e998831bbdac22554a9b4d531d
SM-T31x: Update video output blobs, taken from Note 8

1. libSecExternalDisplayinterface.so edited match to
   external/skia/src/core/SkBitmap.cpp: _ZN8SkBitmap9setConfigENS_6ConfigEiij
   changed to _ZN8SkBitmap9setConfigENS_6ConfigEiii

2. Source change needed, add:

   extern "C" void _ZN8SkBitmap11setIsOpaqueEb(bool isOpaque) {
   }

   to external/skia/src/core/SkBitmap.cpp

3. User space app to control video output via libSecExternalDisplay_jni.so
   still needed

Change-Id: Iac2f2d3b909c9339358facffeb1ee1f354a54e2f