Bluetooth: Use __packed annotation for drivers

Use the __packed annotation instead of the __attribute__((packed)).

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
index 872cb6c..90bda50d 100644
--- a/drivers/bluetooth/btmrvl_drv.h
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -119,13 +119,13 @@
 	__le16 ocf_ogf;
 	u8 length;
 	u8 data[4];
-} __attribute__ ((packed));
+} __packed;
 
 struct btmrvl_event {
 	u8 ec;		/* event counter */
 	u8 length;
 	u8 data[4];
-} __attribute__ ((packed));
+} __packed;
 
 /* Prototype of global function */