Patch merged into coreboot/master: mb/ga-m57sli-s4: Fix early uart output

the following patch was just integrated into master:
commit d502dc092a26726472fc5871c77ebff192be4cb8
Author: Arthur Heymans 
Date:   Tue Dec 27 01:08:02 2016 +0100

mb/ga-m57sli-s4: Fix early uart output

The console output is garbled until it is fixed in ramstage
    by devicetree which sets the uart clock predivider correctly.

Change-Id: I6d6ec0febfec98a8d4a71e1476036c804cf5f08d
    Signed-off-by: Arthur Heymans 
    Reviewed-on: https://review.coreboot.org/17969
    Tested-by: build bot (Jenkins)
    Reviewed-by: Kyösti Mälkki

See https://review.coreboot.org/17969 for details.

-gerrit