ARM: dts: renesas: Miscellaneous whitespace fixes

Remove superfluous spaces near properties and equal signs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1666adade07e16b77af1f03c55799b2ad1378e60.1666605877.git.geert+renesas@glider.be