re: lcg0 framebuffer driver breaks on MicroVAX 3100 M40 (and probably others)

i noticed that the final version of the openbsd lcg.c has quite
a few more checks in it:

- vax_boardtype VAX_BTYP_46 must have 0x40 set invax_confdata
- vax_boardtype VAX_BTYP_48 must have vax_cpustype != VAX_STYP_48
- the LCG_CONFIG_ADDR has value has supported types (looks like
  screen size things.)
- for PARANOIA kernels (?), ensuring access to fb memory works

i'm guessing that the first two boardtype plus checks would solve
your issue here.


.mrg.