arch/arm64/boot/dts/renesas/r8a78000-ironhide.dtb: serial@c0710000 (renesas,hscif-r8a78000): 'resets' is a required property

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f0b9d8eb98dfee8d00419aa07543bdc2c1a44fb1
commit: ad142a4ef7106326bbf5c67eb39f21ef77fe8be3 arm64: dts: renesas: r8a78000: Add initial Ironhide board support
date:   2 months ago
config: arm64-randconfig-2051-20260107 (https://download.01.org/0day-ci/archive/20260108/202601081618.NFixlKBk-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
dtschema version: 2025.12
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260108/202601081618.NFixlKBk-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601081618.NFixlKBk-lkp@xxxxxxxxx/

dtcheck warnings: (new ones prefixed by >>)
>> arch/arm64/boot/dts/renesas/r8a78000-ironhide.dtb: serial@c0710000 (renesas,hscif-r8a78000): 'resets' is a required property
   	from schema $id: http://devicetree.org/schemas/serial/renesas,hscif.yaml
   arch/arm64/boot/dts/renesas/r8a78000-ironhide.dtb: serial@c0710000 (renesas,hscif-r8a78000): 'power-domains' is a required property
   	from schema $id: http://devicetree.org/schemas/serial/renesas,hscif.yaml

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