[coreboot] patch: more generic mainboard name

[ron minnich]

since there's only one mainboard part:

This will break every target in the tree. Be careful what you wish
for. It might come true.

Signed-off-by: Ronald G. Minnich

Index: util/newconfig/config.g
===================================================================
--- util/newconfig/config.g	(revision 3944)
+++ util/newconfig/config.g	(working copy)
@@ -1353,7 +1353,7 @@
    fulldir = os.path.join(srcdir, partdir)
    type_name = flatten_name(partdir)
    newpart = partobj(curimage, fulldir, partstack.tos(), 'mainboard', \
-		type_name, 0, 'chip')
+		'mainboard', 0, 'chip')
    #print "Configuring PART %s" % (type)
    partstack.push(newpart)
    #print "  new PART tos is now %s\n" %partstack.tos().info()