Patch merged into coreboot/master: 8f45761 superio/ite/it8661f: Make early_serial into romstage sym

the following patch was just integrated into master:
commit 8f45761a67347050058537f6a6cd75489af6c1d8
Author: Edward O'Callaghan 
Date:   Tue Apr 15 20:30:49 2014 +1000

superio/ite/it8661f: Make early_serial into romstage sym

Following similar reasoning as commit:
    d304331 superio/fintek/f81865f: Avoid .c includes

Avoid any mistaken future inclusion of early_serial.c in mainboard.c
    code by providing symbols in romstage.

Change-Id: I9e763a7ad9de090e35acdcf4d6a280d8227c6015
    Signed-off-by: Edward O'Callaghan 
    Reviewed-on: http://review.coreboot.org/5508
    Tested-by: build bot (Jenkins)
    Reviewed-by: Kyösti Mälkki

See http://review.coreboot.org/5508 for details.

-gerrit