[PATCH] ide: AMD Geode GX/LX support

From: "Jordan Crouse" <jordan.crouse@amd.com>

The core IDE engine on the CS5536 is the same as the other AMD southbridges,
so unlike the CS5535, we can simply add the appropriate PCI headers to
the existing amd74xx code.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>