Fixes some DMA issues with this platform. Because this isn't currently accepted,
and can potentially disrupt other platforms (as read in commit log), I will
leave this cns3xxx specific.
Original Patch: https://patchwork.ozlabs.org/patch/600024/
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
SVN-Revision: 49249
