dt-bindings: ARM: add bindings for the D-Link DIR-890L

The DIR-890L is a router similar to DIR-885L just a bit different.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221107134104.1422169-1-linus.walleij@linaro.orgSigned-off-by: Florian Fainelli <f.fainelli@gmail.com>

Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml

@@ -66,6 +66,7 @@ properties:
           - enum:
               - asus,rt-ac88u
               - dlink,dir-885l
+              - dlink,dir-890l
               - linksys,panamera
               - luxul,abr-4500-v1
               - luxul,xap-1610-v1