[coreboot] [PATCH] drop quotes

[Stefan Reinauer]

without this patch coreboot's romstage will come up with
coreboot-4.0" <date>. starting..

The patch removes the "

Not sure what causes this, but I think romcc assumes that "" is a
protected " instead of an empty string
(Better fix might be to fix that)

Acked-by: Stefan Reinauer