When adding the adv7180 device node the ports node was misspelled as
port, fix this.

Fixes: 8cae3590 ("ARM: dts: gose: add composite video input")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20200704155856.3037010-2-niklas.soderlund+renesas@ragnatech.seSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>