[coreboot-gerrit] Patch merged into coreboot/master: util/xcompile: parallelize compiler checks

the following patch was just integrated into master:
commit be182ad380bbb335fb5d1d746f0f8ce4a113b2f2
Author: Patrick Georgi 
Date:   Mon Jan 30 15:27:35 2017 +0100

util/xcompile: parallelize compiler checks

Speed up the execution of this script from ~6 seconds to ~1 on my
    system.

There are some changes to its output, but they're actually _more_
    correct: so far, architectures without compiler support kept compiler
    options for architectures that ran successfully earlier.

Change-Id: I0532ea2178fbedb114a75cfd5ba39301e534e742
    Signed-off-by: Patrick Georgi 
    Reviewed-on: https://review.coreboot.org/18262
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/18262 for details.

-gerrit