Bluetooth: Add __init/__exit macros to Marvell SDIO driver

Trivial patch which adds the __init/__exit macros to the module_init/
module_exit functions of btmrvl_sdio.c driver.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 57d965b..94f1f55 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -976,7 +976,7 @@
 	.remove		= btmrvl_sdio_remove,
 };
 
-static int btmrvl_sdio_init_module(void)
+static int __init btmrvl_sdio_init_module(void)
 {
 	if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
 		BT_ERR("SDIO Driver Registration Failed");
@@ -989,7 +989,7 @@
 	return 0;
 }
 
-static void btmrvl_sdio_exit_module(void)
+static void __exit btmrvl_sdio_exit_module(void)
 {
 	/* Set the flag as user is removing this module. */
 	user_rmmod = 1;