Patch merged into coreboot/master: arch/arm64: add DMA_COHERENT region macros to memlayout

the following patch was just integrated into master:
commit 9b423a77d171a7f18ef0eb6bb98daf56eeb1da62
Author: Jimmy Huang 
Date:   Tue Jun 16 12:18:50 2015 +0800

arch/arm64: add DMA_COHERENT region macros to memlayout

BRANCH=none
    BUG=none
    TEST=build pass

Change-Id: Ia997ce97ad42234ab020af7bd007d57d7191ee86
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 604ac738e33fdfbaf093989ea13162c8506b9360
    Original-Change-Id: I636a1a38d0f5af97926d4446f3edb91a359cce4c
    Original-Signed-off-by: Jimmy Huang 
    Original-Reviewed-on: https://chromium-review.googlesource.com/292551
    Original-Commit-Ready: Yidi Lin 
    Original-Tested-by: Yidi Lin 
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: https://review.coreboot.org/12584
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/12584 for details.

-gerrit