Merge tag 'arm-soc/for-5.12/devicetree-arm64' of https://github.com/Broadcom/stblinux into arm/dt

This pull request contains Broadcom ARM64-based SoCs Device Tree changes
for 5.12 please pull the following:

- Rafal continues to add support for the 4906/4908 SoC family and adds
  a Device Tree for the Netgear R8000P router (4906-based), describes
  the NAND controller of the 4908 more appropriately (based on the older
  63138 DSL SoC), describes the 4908 PCIe reset controller, internal
  Ethernet switch (Starfighter 2 switch) and finally the Power
  Management Bus (PMB)

- Scott removes all of the SATA-related Device Tree nodes since SATA
  is unused on the Stingray product line

* tag 'arm-soc/for-5.12/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: Remove SATA from Stingray
  arm64: dts: broadcom: bcm4908: describe PMB block
  arm64: dts: broadcom: bcm4908: describe internal switch
  arm64: dts: broadcom: bcm4908: describe PCIe reset controller
  arm64: dts: broadcom: bcm4908: use proper NAND binding
  arm64: dts: broadcom: bcm4908: add BCM4906 Netgear R8000P DTS files
  dt-bindings: arm: bcm: document Netgear R8000P binding

Link: https://lore.kernel.org/r/20210131221721.685974-4-f.fainelli@gmail.com


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