anv: fixup timestamp writes stage synchronization
The spec currently contradicts itself by forbidding and allowing VK_PIPELINE_STAGE_2_NONE_KHR. This is about to be fixed. We also have that new macro of the pipelined stages so we can use that.
Signed-off-by: Lionel Landwerlin lionel.g.landwerlin@intel.com Fixes: b996fa8e ("anv: implement VK_KHR_synchronization2")