Mini2440 modify 3.8: modify yaffs2 filsystem

1.yaffs2 use 4e188b08c5531f99f73383a85251e03a1e667b26
2.with this patch:
---
diff --git a/yaffs_vfs_multi.c b/yaffs_vfs_multi.c
index 76bc1db..eb41a1c 100644
--- a/yaffs_vfs_multi.c
+++ b/yaffs_vfs_multi.c
@@ -240,7 +240,7 @@ MODULE_PARM(yaffs_gc_control, "i");

-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0))
---
Mini2440 modify 3.9: modify DM9000 driver and change cmdline

There are some differeces.
1. haven't modify DM9000 MAC addr. It's supported already.
2. put DM9000 init func in mach-mini2440.c

cmdline: add "rw" then the root file system can be read write.