arm64: dts: rockchip: Add missing SFC power-domains to rk3576

I finally managed to get some RK3576 boards integrated to our CI
pipeline and promptly got some SError on Rock 4D with the extra
test coverage :( As we hope to get some of those boards for KernelCI,
it would be good to get this fixed in all affected trees. It seemed
enough to just describe the power-domain in DT (i.e. that fixed the
SError for the arm64 defconfig when booting the Rock 4D). If we see
further problems (I haven't so far), we might need something like
[0] for the FSPI driver.

[0] https://lore.kernel.org/all/20250423-rk3576-emmc-fix-v3-1-0bf80e29967f@collabora.com/



[   15.248915] Kernel panic - not syncing: Asynchronous SError Interrupt
[   15.248917] CPU: 7 UID: 0 PID: 142 Comm: (udev-worker) Not tainted 6.15.0-rc6-g51237a9145a9 #1 PREEMPT 
[   15.248921] Hardware name: Radxa ROCK 4D (DT)
[   15.248923] Call trace:
[   15.248924]  show_stack+0x2c/0x84 (C)
[   15.248937]  dump_stack_lvl+0x60/0x80
[   15.248941]  dump_stack+0x18/0x24
[   15.248944]  panic+0x168/0x360
[   15.248948]  add_taint+0x0/0xbc
[   15.248952]  arm64_serror_panic+0x64/0x70
[   15.248956]  do_serror+0x3c/0x70
[   15.248958]  el1h_64_error_handler+0x30/0x48
[   15.248964]  el1h_64_error+0x6c/0x70
[   15.248967]  rockchip_sfc_init.isra.0+0x20/0x8c [spi_rockchip_sfc] (P)
[   15.248972]  platform_probe+0x68/0xdc
[   15.248978]  really_probe+0xc0/0x39c
[   15.248982]  __driver_probe_device+0x7c/0x14c
[   15.248985]  driver_probe_device+0x3c/0x120
[   15.248989]  __driver_attach+0xc4/0x200
[   15.248992]  bus_for_each_dev+0x7c/0xdc
[   15.248995]  driver_attach+0x24/0x30
[   15.248998]  bus_add_driver+0x110/0x240
[   15.249001]  driver_register+0x68/0x130
[   15.249005]  __platform_driver_register+0x24/0x30
[   15.249010]  rockchip_sfc_driver_init+0x20/0x1000 [spi_rockchip_sfc]
[   15.249014]  do_one_initcall+0x60/0x1e0
[   15.249017]  do_init_module+0x54/0x1fc
[   15.249021]  load_module+0x18f8/0x1e50
[   15.249024]  init_module_from_file+0x88/0xcc
[   15.249027]  __arm64_sys_finit_module+0x260/0x358
[   15.249031]  invoke_syscall+0x48/0x104
[   15.249035]  el0_svc_common.constprop.0+0x40/0xe0
[   15.249040]  do_el0_svc+0x1c/0x28
[   15.249044]  el0_svc+0x30/0xcc
[   15.249048]  el0t_64_sync_handler+0x10c/0x138
[   15.249052]  el0t_64_sync+0x198/0x19c
[   15.249057] SMP: stopping secondary CPUs
[   15.249064] Kernel Offset: 0x38f049600000 from 0xffff800080000000
[   15.249066] PHYS_OFFSET: 0xfff0e21340000000
[   15.249068] CPU features: 0x0400,00041250,01000400,0200421b
[   15.249071] Memory Limit: none
[   15.273962] ---[ end Kernel panic - not syncing: Asynchronous SError Interrupt ]---

To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Heiko Stuebner <heiko@sntech.de>
To: Detlev Casanova <detlev.casanova@collabora.com>
Cc: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Cc: kernel@collabora.com
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sebastian Reichel <sre@kernel.org>

--- b4-submit-tracking ---
# This section is used internally by b4 prep for tracking purposes.
{
  "series": {
    "revision": 1,
    "change-id": "20250520-rk3576-fix-fspi-pmdomain-4cfae65b64dd",
    "prefixes": []
  }
}