arm64: dts: renesas: Add missing space after remote-endpoint

Add the missing space after remote-endpoint in r8a774c0.dtsi and
r8a77990.dtsi before the typo spreads to other files.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20220608175728.1012550-1-niklas.soderlund+renesas@ragnatech.se


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>