crypto: qat - Fix assumption that sg in and out will have the same nents

Fixed invalid assumpion that the sgl in and sgl out will always have the same
number of entries.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h
index ab8468d..fcb3231 100644
--- a/drivers/crypto/qat/qat_common/qat_crypto.h
+++ b/drivers/crypto/qat/qat_common/qat_crypto.h
@@ -72,6 +72,7 @@
 	struct qat_alg_buf_list *blout;
 	dma_addr_t bloutp;
 	size_t sz;
+	size_t sz_out;
 };
 
 struct qat_crypto_request {