Patch merged into coreboot/master: buildgcc: Make package build() function more versatile

the following patch was just integrated into master:
commit 11ea2b378bc000a4bf9ffd4fa59c27d299b6cbfc
Author: Nico Huber 
Date:   Tue Jan 26 16:09:31 2016 +0100

buildgcc: Make package build() function more versatile

Refactor build() to make things more flexible:

Add a parameter that tells if we build a package for the host or for a
    target architecture. This is just passed to the build_$package()
    function and can be used later to take different steps in each case
    (e.g. for bootstrapping a host gcc).

Move .success files into the destination directory. That way we can tell
    that a package has been built even if the package build directory has
    been removed.

Change-Id: I52a7245714a040d11f6e1ac8bdbff8057bb7f0a1
    Signed-off-by: Nico Huber 
    Reviewed-on: https://review.coreboot.org/13471
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/13471 for details.

-gerrit