[coreboot-gerrit] Patch merged into coreboot/master: 6e20e2f cbmem: add and use a function to dump console buffer

the following patch was just integrated into master:
commit 6e20e2f16872a276c9af18b7ca11b1ea62bfb820
Author: Vadim Bendebury 
Date:   Fri Apr 10 18:04:04 2015 -0700

cbmem: add and use a function to dump console buffer

The new function can be compiled in only when serial console is
    disabled.

When invoked, this function initializes the serial interface and dumps
    the contents of the CBMEM console buffer to serial output.

BRANCH=none
    BUG=chromium:475347
    TEST=compiled for different platforms with and without serial console
         enabled. No actual test of this function yet.

Change-Id: Ia8d16649dc9d09798fa6970f2cfd893438e00dc5
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: a38a8254dd788ad188ba2509b9ae117d6f699579
    Original-Change-Id: Ib85759a2727e31ba1ca21da7e6c346e434f83b52
    Original-Signed-off-by: Vadim Bendebury 
    Original-Reviewed-on: https://chromium-review.googlesource.com/265293
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/9984
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/9984 for details.

-gerrit