Merge tag 'arm-soc/for-5.17/devicetree-arm64' of https://github.com/Broadcom/stblinux into arm/dt

This pull request contains Broadcom ARM64-based SoCs Device Tree changes
for 5.17, please pull the following:

- Rafal adds and documents the Netgear RAXE500 Wireless router based on
the BCM4908 SoC.

* tag 'arm-soc/for-5.17/devicetree-arm64' of https://github.com/Broadcom/stblinux

:
  arm64: dts: broadcom: bcm4908: add DT for Netgear RAXE500
  dt-bindings: arm: bcm: document Netgear RAXE500 binding

Signed-off-by: Arnd Bergmann <arnd@arndb.de>