pinctrl: bcm2835: Add brcm,bcm2711 compatible

Add a new compatible for the BCM2711.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/1563776607-8368-2-git-send-email-wahrenst@gmx.net


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>