panvk: Fix TLS initialization for multi-draw batches

panvk: Fix TLS initialization for multi-draw batches

If we queue multiple draws to the same batch, the TLS size should be
adjusted to cover the maximum TLS size requirement, not just the one
of the pipeline bound when the batch is closed. This requires keeping
TLS info attached to the batch and updating it every time a draw is
issued.

While at it, get rid of the wg_count state: we'll let vkCmdDispatch()
calculate the total WLS size.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13077>