ARM: dts: gose: Fix ports node name for adv7612

When adding the adv7612 device node the ports node was misspelled as
port, fix this.

Fixes: bc63cd87 ("ARM: dts: gose: add HDMI input")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20200713111016.523189-1-niklas.soderlund+renesas@ragnatech.seSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/boot/dts/r8a7793-gose.dts

@@ -393,7 +393,7 @@ hdmi-in@4c {
 			interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
 			default-input = <0>;
 
-			port {
+			ports {
 				#address-cells = <1>;
 				#size-cells = <0>;