Merge tag 'arm-soc/for-6.17/devicetree-arm64' of https://github.com/Broadcom/stblinux...

This pull request contains Broadcom ARM64-based SoCs Device Tree updates
for 6.17, please pull the following:

- Linus updates the 64-bit BCMBCA SoCs Device Tree with the common
  peripherals that exit as well as correct IRQ assignments

- Andrea adds support for the RP1 companion chip on the Raspberry Pi 5
  systems with clocks, gpios, pinctrl, all of that using an overlay to
  describe those peripherals

- Rob drops the interrupt-parent property from the GICv2M node on
  Northstar2 SoCs

* tag 'arm-soc/for-6.17/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: northstar2: Drop GIC V2M "interrupt-parent"
  arm64: dts: broadcom: Add overlay for RP1 device
  arm64: dts: broadcom: Add board DTS for Rpi5 which includes RP1 node
  arm64: dts: bcm2712: Add external clock for RP1 chipset on Rpi5
  arm64: dts: rp1: Add support for RaspberryPi's RP1 device
  dt-bindings: misc: Add device specific bindings for RaspberryPi RP1
  dt-bindings: pinctrl: Add RaspberryPi RP1 gpio/pinctrl/pinmux bindings
  dt-bindings: clock: Add RaspberryPi RP1 clock bindings
  ARM64: dts: bcm63158: Add BCMBCA peripherals
  ARM64: dts: bcm6858: Add BCMBCA peripherals
  ARM64: dts: bcm6856: Add BCMBCA peripherals
  ARM64: dts: bcm4908: Add BCMBCA peripherals

Link: https://lore.kernel.org/r/20250630190216.1518354-3-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>