anv: don't use default pipeline cache for hits for VK_EXT_pipeline_creation_feedback

If the user didn't provide a pipeline cache and we're using the
default internal pipeline cache, then we shouldn't consider a cache
hit for VK_EXT_pipeline_creation_feedback as the application did not
provide a cache.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 6601e5d6 ("anv: implement VK_EXT_pipeline_creation_feedback")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
15 jobs for !627 with review/VK_EXT_pipeline_creation_feedback-fix in 15 minutes and 35 seconds (queued for 19 seconds)
merge request