arm64: dts: rockchip: add hdd leds to Qnap-TS433

arm64: dts: rockchip: add hdd leds to Qnap-TS433

Add the 4 gpio-controlled LEDs to the Qnap-TS433.

They are meant for individual disk activitivy, but I haven't found a
way for how to connect them to their individual sata slot yet.

Tested-by: Uwe Kleine-König <ukleinek@debian.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20240723195538.1133436-9-heiko@sntech.de
[ upstream commit: ea91aabf18bcad6f5eceae6848ea6570ea61f126 ]

(cherry picked from commit 5a11b1bb40ac7b39e04077c045c3e3409fa352e2)
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>