arm64: dts: renesas: salvator-common: Sort node label

This patch sorts the node label to improve maintainability.
The sort has been done alphabetically with the node label name as the
key.

This patch does not include functional changes.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>