vulkan: expose PCI bus address for interop

The great thing about standards is that there are so many to choose from.

While nvidia uses UUIDs to match vulkan and cuda devices, mesa uses PCI bus addresses to match with DRM devices - primarily because DRM only provides the PCI bus address as identity information. So, if we want to ensure that a client can match the vulkan and DRM devices, we need to expose the PCI information.