crypto: atmel-sha - remove unneeded break

A break is not needed if it is preceded by a return

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/atmel-sha.c

@@ -459,7 +459,6 @@ static int atmel_sha_init(struct ahash_request *req)
 		break;
 	default:
 		return -EINVAL;
-		break;
 	}
 
 	ctx->bufcnt = 0;