trivial: mtd: add __init/__exit macros to init/exitfunctions

Trivial patch which adds the __init and __exit macros to the module_init /
module_exit functions to the following modules from drivers/mtd/
 devices/m25p80.c
 devices/slram.c
 linux version 2.6.30
 ftl.c
 nand/cafe_nand.c
 nand/cmx270_nand.c

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index a790c06..e56d6b4 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -1099,7 +1099,7 @@
 	.owner		= THIS_MODULE,
 };
 
-static int init_ftl(void)
+static int __init init_ftl(void)
 {
 	return register_mtd_blktrans(&ftl_tr);
 }