vulkan: add a wrapper for hwvulkan_device_t am: 31b2e4f01d am: 3e17701da8
am: 6fadda42fb

* commit '6fadda42fb164011c582a6312e88e365a58874b6':
  vulkan: add a wrapper for hwvulkan_device_t

Change-Id: Id385bea627a33aa6054d499df4395f1649db7679