[CRYPTO] api: Add missing headers for setkey_unaligned

This patch ensures that kernel.h and slab.h are included for
the setkey_unaligned function.  It also breaks a couple of
long lines.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index d8f8ec3..5991c53 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -339,7 +339,8 @@
 	return blkcipher_walk_next(desc, walk);
 }
 
-static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
+static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key,
+			    unsigned int keylen)
 {
 	struct blkcipher_alg *cipher = &tfm->__crt_alg->cra_blkcipher;
 	unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
@@ -360,8 +361,7 @@
 	return ret;
 }
 
-static int setkey(struct crypto_tfm *tfm, const u8 *key,
-		  unsigned int keylen)
+static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
 {
 	struct blkcipher_alg *cipher = &tfm->__crt_alg->cra_blkcipher;
 	unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);