arm64: dts: rockchip: Add rng node to RK3588

arm64: dts: rockchip: Add rng node to RK3588

Add the RK3588's standalone hardware random number generator node to its
device tree, and enable it.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250204-rk3588-trng-submission-v2-6-608172b6fd91@collabora.com
[changed reset-id to its numeric value while the constant makes its
 way through the crypto tree]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[ upstream commit: 6ee0b9ad3995ee5fa229035c69013b7dd0d3634b ]

(cherry picked from commit 4800c4aaad00ffdc053850f130e8504a04dd110d)
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>