Patch merged into coreboot/master: x86: provide common macro for linking early stages

the following patch was just integrated into master:
commit 1bc6a79874bc464167ff27319adc16ec87a7206c
Author: Aaron Durbin 
Date:   Tue Sep 29 14:54:25 2015 -0500

x86: provide common macro for linking early stages

In order to support verstage on x86 one needs to link verstage
    like romstage since it needs all the cache-as-ram goodies. Therefore,
    provide a macro that one can invoke that provides the necessary
    recipes for linking that particular stage in such an environment.

BUG=chrome-os-partner:44827
    BRANCH=None
    TEST=Built and booted glados.

Change-Id: I12f4872df09fff6715829de68fc374e230350c2e
    Signed-off-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/11739
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/11739 for details.

-gerrit