doc: fix RSS flow description in i40e guide

[ upstream commit 742d9f8 ]

The command here does not create a queue region, but only sets the
lookup table, so the descriptions in the doc is not exact.

Fixes: feaae28 ("net/i40e: support hash configuration in RSS flow")

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

doc/guides/nics/i40e.rst

@@ -562,9 +562,9 @@ Generic flow API
 - ``RSS Flow``
 
   RSS Flow supports to set hash input set, hash function, enable hash
-  and configure queue region.
+  and configure queues.
   For example:
-  Configure queue region as queue 0, 1, 2, 3.
+  Configure queues as queue 0, 1, 2, 3.
 
   .. code-block:: console