Backport DTS/DTSI changes from linux-6.4.y to 6.1.y Add meson64-reboot driver to all boards Add board: ODROID N2L Add uart_A uart_AO_B uart_B uart_C where appropriate U-Boot v2023.07.02: ODROID N2/N2L/N2Plus/C4

Meson64-reboot driver: (source: tobetter) While the current meson64-reboot driver is cleaner and doesn't depend on modding other kernel sources, its functionality leaves much to be desired. One example can be found in the ODROID C4. Using the current driver, the board will not properly power off, leaving the POWER LED still on. The new driver powers off the unit completely.

Fan control: (ODROID N2L/N2PLus) Added service and script for controlling the trip point. fanctrl: arguments: 65 55 45 35 25 menu run

                              ┌──┤ Fan Control ├──┐
                              │                   │
                              │    6) 65°C        │
                              │    5) 55°C        │
                              │    4) 45°C        │
                              │    3) 35°C        │
                              │    2) 25°C        │
                              │    E) Exit ..     │
                              │                   │
                              │                   │
                              │      <Ok>         │
                              │                   │
                              └───────────────────┘

NOTES: (N2L/HC4): I do not own the units so I can't run tests.

Checklist:

• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [X] My changes generate no new warnings
• [ ] Any dependent changes have been merged and published in downstream modules

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