arm64: dts: renesas: spider-cpu: Fix scif0/scif3 sort order

The scif0 nodes were accidentally inserted after the scif3 nodes,
breaking alphabetical sort order.

Fixes: 1614c862 ("arm64: dts: renesas: spider-cpu: Enable SCIF0 on second connector")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2fe0e782351c202ed009dcd658f4bceec8f3a56d.1656951240.git.geert+renesas@glider.be