ryu: Get rid of coreboot setting up DMA areas for libpayload

ryu: Get rid of coreboot setting up DMA areas for libpayload

BUG=chrome-os-partner:31634
BRANCH=None
TEST=Compiles successfully and dma areas are setup fine by libpayload mmu

Change-Id: I6d2d1dbcfc9bdeea94c89a9a3fce486203269642
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0425e87f21bcb92861240d6437769a5b28e9929b
Original-Change-Id: I1034a4dcf6c9ee56bee4ea5d18e91a8d51895429
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/217571
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9072
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>