[PATCH] give root=/dev/ram special handling, needed for root fs on ramdisk

[vda]

This fixes a regression versus 2.4 reported earlied,
see http://lkml.org/lkml/2004/3/5/45
-- 
vdadiff -urN linux-2.6.3.orig/init/do_mounts.c linux-2.6.3/init/do_mounts.c
--- linux-2.6.3.orig/init/do_mounts.c	Tue Mar  9 16:17:14 2004
+++ linux-2.6.3/init/do_mounts.c	Tue Mar  9 16:18:42 2004
@@ -163,6 +163,9 @@
 	res = Root_NFS;
 	if (strcmp(name, "nfs") == 0)
 		goto done;
+	res = Root_RAM0;
+	if (strcmp(name, "ram") == 0)
+		goto done;
 
 	if (strlen(name) > 31)
 		goto fail;