arm64: dts: meson-gx: fix periphs bus node name

This fixes the following DT schemas check errors:
meson-gxbb-nanopi-k2.dt.yaml: periphs@c8834000: $nodename:0: 'periphs@c8834000' does not match '^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
meson-gxl-s805x-libretech-ac.dt.yaml: periphs@c8834000: $nodename:0: 'periphs@c8834000' does not match '^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-gx.dtsi

@@ -451,7 +451,7 @@ vdec: video-codec@c8820000 {
 			amlogic,canvas = <&canvas>;
 		};
 
-		periphs: periphs@c8834000 {
+		periphs: bus@c8834000 {
 			compatible = "simple-bus";
 			reg = <0x0 0xc8834000 0x0 0x2000>;
 			#address-cells = <2>;