arm64: dts: broadcom: bcm2712-d-rpi-5-b: add fixes for pinctrl/pinctrl_aon

arm64: dts: broadcom: bcm2712-d-rpi-5-b: add fixes for pinctrl/pinctrl_aon

On the -d revision of the bcm2712 the pinctrl differs from the c0
revision. The driver already supports both and distinguishes the two
with the compatible string.

Update the compatible string and reg length to reflect the different
pinctrl.

Signed-off-by: Gregor Herburger <gregor.herburger@linutronix.de>
Link: https://lore.kernel.org/r/20260226-raspi-dts-updates-v1-5-60832d20ff04@linutronix.de
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>