anv: fix uninitialized use of compute initialization batch
What does this MR do and why?
anv: fix uninitialized use of compute initialization batch
We sometimes fail initialization.
Signed-off-by: Lionel Landwerlin lionel.g.landwerlin@intel.com Fixes: 09d12e67 ("anv: Add support for I915_ENGINE_CLASS_COMPUTE in init_device_state()")