The index buffer and index buffer size don't affect whether or not we're
actually doing indexed rendering so we should just emit them whenever
they change. Otherwise, if someone sets an index buffer and then does a
non-indexed draw and then an indexed draw, the first draw will clear the
dirty bits without setting the index buffer registers and the second
draw won't know to re-emit them.
Fixes: 5544d39f44 ("panvk: Add a CSF backend for panvk_queue/cmd_buffer")
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Marc Alcala Prieto <marc.alcalaprieto@arm.com>
(cherry picked from commit 9c8e8ed655)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41269>
215cffa772