Patch merged into coreboot/master: Makefile.inc: Add AMDFWTOOL to tools so abuild will stop failing

the following patch was just integrated into master:
commit 9c940aec36617128764bdeb3894a05d374c8673a
Author: Martin Roth 
Date:   Fri Dec 4 13:11:35 2015 -0700

Makefile.inc: Add AMDFWTOOL to tools so abuild will stop failing

Jenkins keeps failing trying to build AMDFWTOOL because it's being
    built by multiple platforms at the same time.  Putting it into the tools
    list and having it built ahead of time should fix this problem.

Change-Id: I2a8308036135729f0ed19502f3e039aca009b3f3
    Signed-off-by: Martin Roth 
    Reviewed-on: https://review.coreboot.org/12647
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/12647 for details.

-gerrit