ARM: dts: bcm53016: Add devicetree for D-Link DWL-8610AP

This adds a device tree for the BCM53016-based D-Link DWL-8610AP
access point wireless router.

The TRX-format partitions had to be named "firmware" due to
an OpenWrt patch that only accepts parting such nodes if they
are named "firmware".

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221019193449.3036010-2-linus.walleij@linaro.org


Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>