RFC: smbios: allow setting BIOS version string from VPD variable

As in the title. Such approach allows for convenient setting of the
firmware version and keep it in partition that is easily readable
from both - coreboot binary and already running operating system.

It can be used in cases when we still need to rely on SMBIOS for
legacy reasons (old closed source software that is not aware of
presence of VPD).

vpd_find is used directly as it returns pointer to vpd value which,
by spec, is terminated by 0x00 (VPD_TYPE_TERMINATOR) anyway. This
way we avoid copying string around and coming up with temporary
buffer.

Change-Id: If0e9d90ed0941c4e76e3e48cdcccf830ef789458
Signed-off-by: Lukasz Siudut <lsiudut@gmail.com>
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M src/arch/x86/smbios.c
1 file changed, 13 insertions(+), 0 deletions(-)