[PATCH v2 7/7] doc: add missing authentication algorithm

[Gagandeep Singh <g.singh@nxp.com>]

Adding the missing SHA256-HMAC authentication algorithm
in ipsec-secgw guide.

Fixes: b5350285ce6e ("examples/ipsec-secgw: support SHA256 HMAC")
Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 doc/guides/sample_app_ug/ipsec_secgw.rst | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/guides/sample_app_ug/ipsec_secgw.rst b/doc/guides/sample_app_ug/ipsec_secgw.rst
index 5cb6a69a27..94197a34f0 100644
--- a/doc/guides/sample_app_ug/ipsec_secgw.rst
+++ b/doc/guides/sample_app_ug/ipsec_secgw.rst
@@ -116,8 +116,8 @@ Constraints
 *  No IPv6 options headers.
 *  No AH mode.
 *  Supported algorithms: AES-CBC, AES-CTR, AES-GCM, 3DES-CBC, DES-CBC,
-   HMAC-SHA1, AES-GMAC, AES_CTR, AES_XCBC_MAC, AES_CCM, CHACHA20_POLY1305
-   and NULL.
+   HMAC-SHA1, HMAC-SHA256, AES-GMAC, AES_CTR, AES_XCBC_MAC, AES_CCM,
+   CHACHA20_POLY1305 and NULL.
 *  Each SA must be handle by a unique lcore (*1 RX queue per port*).
 
 Compiling the Application
@@ -595,6 +595,7 @@ where each options means:
 
     * *null*: NULL algorithm
     * *sha1-hmac*: HMAC SHA1 algorithm
+    * *sha256-hmac*: HMAC SHA256 algorithm
     * *aes-xcbc-mac*: AES XCBC MAC algorithm
 
 ``<auth_key>``
-- 
2.25.1