arm64: dts: renesas: sparrow-hawk: Add overlay for Argon40 fan HAT
Add a DT overlay to bind the Argon40 fan HAT on the Retronix R-Car V4H
Sparrow Hawk board. Fan RPM control and full RPM on reboot has been
tested.
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250907161130.218470-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>