arm64: dts: rockchip: add missing definition of pmu io domains 1 and 2 on ringneck

arm64: dts: rockchip: add missing definition of pmu io domains 1 and 2 on ringneck

Two pmuio domains on ringneck are not defined:
	1- PMUIO1: supplied by vcc_3v3 regulator(PMIC RK809)
	2- PMUIO2: supplied by vcc_3v3 regulator(PMIC RK809)

The reason why no functional effect was observed is because of that
the above mentionned PMUIO domains were supplied by a regulator
which is always on.

So let's add their definition in the dtsi.

Signed-off-by: Iskander Amara <iskander.amara@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240103164734.1151290-1-iskander.amara@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>