crypto: ixp4xx - 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/ixp4xx_crypto.c

···
 	return 0;
 }
 
-static spinlock_t desc_lock;
+static DEFINE_SPINLOCK(desc_lock);
 static struct crypt_ctl *get_crypt_desc(void)
 {
 	int i;
···
 	}
 }
 
-static spinlock_t emerg_lock;
+static DEFINE_SPINLOCK(emerg_lock);
 static struct crypt_ctl *get_crypt_desc_emerg(void)
 {
 	int i;
···
 	pdev = platform_device_register_full(&ixp_dev_info);
 	if (IS_ERR(pdev))
 		return PTR_ERR(pdev);
-
-	spin_lock_init(&desc_lock);
-	spin_lock_init(&emerg_lock);
 
 	err = init_ixp_crypto(&pdev->dev);
 	if (err) {