Patch merged into coreboot/master: 0a3f239 crossgcc: properly test for flex

the following patch was just integrated into master:
commit 0a3f2393aefd8fceea075e3108d581aadec292ab
Author: Patrick Georgi 
Date:   Tue Nov 20 12:04:32 2012 +0100

crossgcc: properly test for flex

This is no GNU tool, so testing for "GNU" in the version string
    is bound to fail.
    We now accept everything that returns success on "flex --version"
    and then hope for the best.

I tested both cases

Change-Id: If325f613fde1648847b998b7e8e5782d0f22b484
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/1884
    Tested-by: build bot (Jenkins)
    Reviewed-by: Zheng Bao 
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/1884 for details.

-gerrit