Build libclearkeycasplugin with BOARD_VNDK_VERSION

Instead of relying on the global include paths, use the new headers lib
'media_plugin_headers'.

Bug: 37342627
Test: BOARD_VNDK_VERSION=current m -j libclearkeycasplugin
Change-Id: Ic6b5230bc9b674e21ccd36ce6ad117c687200599
1 file changed