ACPI changes in -current, -10 vs. kernels w/o "genfb"

["John D. Baker" <jdbaker%consolidated.net@localhost>]

The following change in -current:

  https://mail-index.netbsd.org/source-changes/2023/10/16/msg148163.html

and its subsequent pull-up to netbsd-10:

  https://mail-index.netbsd.org/source-changes/2023/10/18/msg148226.html

breaks building kernels which exclude "genfb".  The failure is as follows:

[...]
#      link  VERTHANDI/netbsd
/r0/build/netbsd-10/tools/amd64/bin/i486--netbsdelf-ld -Map netbsd.map --cref -T netbsd.ldscript -Ttext c0100000 -e start -X -o netbsd ${SYSTEM_OBJ:[@]:Nswapnetbsd.o} ${EXTRA_OBJ} vers.o swapnetbsd.o
/r0/build/netbsd-10/tools/amd64/bin/i486--netbsdelf-ld: acpi_wakeup.o: in function `acpi_md_sleep_patch':
/x/netbsd-10/src/sys/arch/x86/acpi/acpi_wakeup.c:145: undefined reference to `acpi_md_vesa_modenum'
[...]

I have machines with ACPI for which "genfb" (or any DRMKMS framebuffer)
is superfluous and therefore are omitted from the configuration.

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