libvulkan: Load layer libraries into the app namespace am: 40c07a1d00 am: f37b30223d
am: 25f1bbf7de

* commit '25f1bbf7de63036d51ba71981cc53212fb24046f':
  libvulkan: Load layer libraries into the app namespace

Change-Id: I589c1e8f85de5f2c8c3f6cdcff2709a441b34568