[Armbian build PR] - RFC: mixtile-blade3 / rockchip-rk3588 edge 6.7: add DT from Joshua Riek + some fixes

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RFC: mixtile-blade3 / rockchip-rk3588 edge 6.7: add DT from Joshua Riek + some fixes

• mixtile-blade3 / rockchip-rk3588 edge 6.7: add DT (original from Joshua Riek)
  • base for https://github.com/Joshua-Riek/linux/pull/1
• mixtile-blade3 / rockchip-rk3588 edge 6.7: cleanups for Mixtile Blade3
  • arm64: dts: rockchip: cleanups for Mixtile Blade3
  • drop hym8563 pinctrl (don't think the blade3 has an RTC)
  • i2c5 is exposed on the 30-pin, add comment
  • fix tab in pcie30phy
• mixtile-blade3 / rockchip-rk3588 edge 6.7: pci3x4 for Mixtile Blade3 (rpardini's bad take)
  • arm64: dts: rockchip: pci3x4 for Mixtile Blade3
  • pinctrl for 1 RK_PB2 pull_up
  • regulator vcc3v3_pcie30 always-on and boot-on
    • there is probably a much better fix than this, but I couldn't find it
• mixtile-blade3 / rockchip-rk3588 edge 6.7: slow down eMMC from hs400 to hs200
• mixtile-blade3 / rockchip-rk3588-edge 6.7: enable tsadc for thermal sensors
  • thanks AmazingFate
• mixtile-blade3: enable edge branch with new dt; all branches use vendor u-boot

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here's some work I've been sitting on for a while for the Mixtile Blade3 - schematics - vendor kernel DT

I took @Joshua-Riek 's DT and worked it a bit. All credit to him.

Most stuff works, but it's not really stable, and pcie3x4 works "sometimes". Similar stuff works for (vendor) u-boot, where it always works.

I'm using their u.2 to m.2 breakout board.

Any ideas?

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