OpenBSD/src 8KYmU15sys/arch/amd64/amd64 efifb.c bios.c, sys/arch/amd64/conf files.amd64 GENERIC

   Modify kernel to prepare boot from UEFI.

   - Add new boot arg "bios_efi_info_t" to pass the paramters from UEFI
   - Make bios(4) and acpi(4) be able to probe with the parameters from
     UEFI
   - Add efifb(8).  It uses the framebuffer from UEFI and it will work as
     a backend of wsdisplay(4) and wsfb (X11 video driver).  Disabled by
     the kernel config for this moment

   input and ok kettenis
VersionDeltaFile
1.1+300-0sys/arch/amd64/amd64/efifb.c
1.32+48-25sys/arch/amd64/amd64/bios.c
1.11+18-8sys/arch/amd64/amd64/wscons_machdep.c
1.1+19-0sys/arch/amd64/include/efifbvar.h
1.22+17-1sys/arch/amd64/include/biosvar.h
1.71+13-2sys/arch/amd64/amd64/acpi_machdep.c
1.216+12-2sys/arch/amd64/amd64/machdep.c
1.80+8-1sys/arch/amd64/conf/files.amd64
1.31+6-1sys/arch/amd64/amd64/mainbus.c
1.394+4-1sys/arch/amd64/conf/GENERIC
1.72+2-1sys/dev/wscons/wsconsio.h
+447-4211 files

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