MIPS: SiByte: Regenerate stale SWARM defconfig

Options have been removed and reordered since the last update, so
regenerate the template so as not to interfere with actual changes.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>