crypto: skcipher - Get rid of crypto_spawn_skcipher2()

Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level
givcipher interface"), crypto_spawn_skcipher2() and
crypto_spawn_skcipher() are equivalent.  So switch callers of
crypto_spawn_skcipher2() to crypto_spawn_skcipher() and remove it.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 5f11b80..b7ad808 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -575,7 +575,7 @@
 	if (IS_ERR(ghash))
 		return PTR_ERR(ghash);
 
-	ctr = crypto_spawn_skcipher2(&ictx->ctr);
+	ctr = crypto_spawn_skcipher(&ictx->ctr);
 	err = PTR_ERR(ctr);
 	if (IS_ERR(ctr))
 		goto err_free_hash;