[coreboot-gerrit] Patch merged into coreboot/master: dbe0df1 Add and consistently use wrapper macro for romstage static variables

the following patch was just integrated into master:
commit dbe0df199215724ea23ccd549e5782ad18faaf7f
Author: Julius Werner 
Date:   Fri Jun 6 16:10:56 2014 -0700

Add and consistently use wrapper macro for romstage static variables

x86 systems run their romstage as execute-in-place from flash, which
    prevents them from having writable data segments. In several code pieces
    that get linked into both romstage and ramstage, this has been worked
    around by using a local variable and having the 'static' storage class
    guarded by #ifndef __PRE_RAM__.

However, x86 is the only architecture using execute-in-place (for now),
    so it does not make sense to impose the restriction globally. Rather
    than fixing the #ifdef at every occurrence, this should really be
    wrapped in a way that makes it easier to modify in a single place. The
    chromeos/cros_vpd.c file already had a nice approach for a wrapper
    macro, but unfortunately restricted it to one file... this patch moves
    it to stddef.h and employs it consistently throughout coreboot.

BRANCH=nyan
    BUG=None
    TEST=Measured boot time on Nyan_Big before and after, confirmed that it
    gained 6ms from caching the FMAP in vboot_loader.c.

Original-Change-Id: Ia53b94ab9c6a303b979db7ff20b79e14bc51f9f8
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/203033
    Original-Reviewed-by: Aaron Durbin 
    Original-Reviewed-by: Stefan Reinauer 
    (cherry picked from commit c8127e4ac9811517f6147cf019ba6a948cdaa4a5)
    Signed-off-by: Marc Jones

Change-Id: I44dacc10214351992b775aca52d6b776a74ee922
    Reviewed-on: http://review.coreboot.org/8055
    Reviewed-by: Stefan Reinauer 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/8055 for details.

-gerrit