[MTD] Restore MTD_ROM and MTD_RAM types

Let's not attempt the abolition of mtd->type until/unless it's properly
thought through. And certainly, let's not do it by halves.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c
index a6466f9..4ab7670 100644
--- a/drivers/mtd/devices/ms02-nv.c
+++ b/drivers/mtd/devices/ms02-nv.c
@@ -218,7 +218,7 @@
 	fixsize = (size - (fixaddr - addr)) & ~(PAGE_SIZE - 1);
 	mp->uaddr = phys_to_virt(fixaddr);
 
-	mtd->type = MTD_GENERIC_TYPE;
+	mtd->type = MTD_RAM;
 	mtd->flags = MTD_CAP_RAM;
 	mtd->size = fixsize;
 	mtd->name = (char *)ms02nv_name;