Merge "vulkan: fix double dlopen for layer libraries" into nyc-dev am: 79994146e1 am: 61c022eb77
am: e9eb77c71f

* commit 'e9eb77c71f94e84891f1afc20a256582db237f76':

Change-Id: I870982c874c40e16ce3d76b26b0d83e767bbaa73