crypto: geode - use DEFINE_SPINLOCK() for spinlock

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: Guobin Huang <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/geode-aes.c

···
 /* Static structures */
 
 static void __iomem *_iobase;
-static spinlock_t lock;
+static DEFINE_SPINLOCK(lock);
 
 /* Write a 128 bit field (either a writable key or IV) */
 static inline void
···
 		ret = -ENOMEM;
 		goto erequest;
 	}
-
-	spin_lock_init(&lock);
 
 	/* Clear any pending activity */
 	iowrite32(AES_INTR_PENDING | AES_INTR_MASK, _iobase + AES_INTR_REG);