Staging: meilhaus: Use DEFINE_SPINLOCK

SPIN_LOCK_UNLOCKED is deprecated.  The following makes the change suggested
in Documentation/spinlocks.txt

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
declarer name DEFINE_SPINLOCK;
identifier xxx_lock;
@@

- spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
+ DEFINE_SPINLOCK(xxx_lock);
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/meilhaus/memain.c

@@ -79,7 +79,7 @@ MODULE_PARM(major, "i");
 
 static struct file *me_filep = NULL;
 static int me_count = 0;
-static spinlock_t me_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(me_lock);
 static DECLARE_RWSEM(me_rwsem);
 
 /* Board instances are kept in a global list */