Make early x86 POST codes written to IO port optional

This continues the work done in patch 6b908d08ab
http://review.coreboot.org/#/c/1685/
and makes the early x86 post codes follow the same options.

Change-Id: Idf0c17b27b3516e79a9a53048bc203245f7c18ff
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3237
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
1 file changed