[Armbian build PR] - WSL2 "boards" `wsl2-x86`/`wsl2-arm64` with current (6.1.y) and edge (6.6.y) kernels with Microsoft patches

WSL2 "boards" wsl2-x86/wsl2-arm64 with current (6.1.y) and edge (6.6.y) kernels with Microsoft patches

• WSL2 "boards" wsl2-x86/wsl2-arm64 with current (6.1.y) and edge (6.6.y) kernels with Microsoft patches

  tl,dr: add 4 small-ish UEFI-like kernels, with Microsoft patches & fixes, for use with Microsoft WSL2 on x86/arm64 and 6.1.y/6.6.y

  • the boards are UEFI derivatives, using a common microsoft vendor include to modify
    • KERNELPATCHDIR/LINUXFAMILY (for now, we don't want those patches in regular UEFI builds / .debs)
    • disable EXTRAWIFI (kernel is for a VM, will never have wifi so doesn't need any drivers)
    • LINUXCONFIG, so we can use Microsoft's own monolithic kernel, required for WSL2 (their initrd is a mistery)
  • really, what we're mostly interested right now are the kernels (in the future we might have an "Armbian" WSL2 app in the Microsoft Store)
    • current 6.1.y:
      • rebased from https://github.com/microsoft/WSL2-Linux-Kernel/tree/linux-msft-wsl-6.1.y onto real 6.1.y
      • using Microsoft's .config exactly (monolithic, there are no =m's)
    • edge 6.6.y:
      • also from https://github.com/microsoft/WSL2-Linux-Kernel/tree/linux-msft-wsl-6.1.y but rebased onto 6.6.y
      • using updated Microsoft's .config (monolithic, there are no =m's)
      • dropped 2 of 6.1.y's patches that were actually upstreamed in the meantime:
        • mm-page_reporting-Add-checks-for-page_reporting_order-param - mainlined in https://lore.kernel.org/all/1664517699-1085-2-git-send-email-shradhagupta@linux.microsoft.com/
        • hv_balloon-Add-support-for-configurable-order-free-page-reporting - mainlined in https://lore.kernel.org/all/1664517699-1085-3-git-send-email-shradhagupta@linux.microsoft.com/
      • drop the arm64: hyperv: Enable Hyper-V synthetic clocks/timers patch, since it causes asm breakage on 6.6.y
        • a shame, but I tried and can't fix it myself - @kelleymh ?
      • add my own patch to fix:
        • 1709-drivers-hv-dxgkrnl-restore-uuid_le_cmp-removed-from-upstream-in-f5b3c341a.patch due to https://lore.kernel.org/all/20230202145412.87569-1-andriy.shevchenko@linux.intel.com/ landing in 6.6
        • 1710-drivers-hv-dxgkrnl-adapt-dxg_remove_vmbus-to-96ec29396-s-reality-void-return.patch to adapt to https://lore.kernel.org/all/TYCP286MB2323A93C55526E4DF239D3ACCAFA9@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM/
• wsl2: detect Armbian-built wsl2 kernel as well as Microsoft's default kernel
  • previous commit introduces Armbian wsl2 kernels, might as well detect them

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