nulldrv: Claim support for all features
nulldrv: Claim support for all features

Previously we supported no features. SC will shortly start checking for
capabilities matching enabled device features, so we need to expose
at least the features the tests and demos use.

It's safe to just expose everything, so do.

Signed-off-by: Chris Forbes <c3279c50043e18e9442c1ae071cafa0e7a4ca967@google.com>

sashinde/VulkanTools,sashinde/VulkanTools,sashinde/VulkanTools,sashinde/VulkanTools