Merge tag 'arm-soc/for-5.11/devicetree-arm64' of https://github.com/Broadcom/stblinux into arm/dt

This pull request contains Broadcom ARM64-based SoCs Device Tree changes
for 5.11, please pull the following:

- Rafal adds initial support for the Broadcom 4908 which are SoCs used
  in home routers and are based on the DSL architecture and using
  Broadcom Brahma-B53 CPUs.

* tag 'arm-soc/for-5.11/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: add config for Broadcom BCM4908 SoCs
  arm64: dts: broadcom: add BCM4908 and Asus GT-AC5300 early DTS files
  dt-bindings: arm: bcm: document BCM4908 bindings

Link: https://lore.kernel.org/r/20201128163410.1691529-4-f.fainelli@gmail.com


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