boardstatus: Drop v4 mention of coreboot version.

Change-Id: I5cf34e14f6e11c03822a6ce6226365c76e0f6875
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4742
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
1 file changed