zink: emit WorkgroupSize when not using ExecutionModeLocalSize
the system_values_read bit might not be set if the value isn't read or is DCE, but it still needs to be emitted
probably.
fixes #4591 (closed)
the system_values_read bit might not be set if the value isn't read or is DCE, but it still needs to be emitted
probably.
fixes #4591 (closed)