[dts] [dts 1/7] test_plans/unit_tests_kni_test_plan:update test plan to sync with testsuite

[Xie wei]

Signed-off-by: Xie wei <weix.xie at intel.com>
---
 test_plans/unit_tests_kni_test_plan.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test_plans/unit_tests_kni_test_plan.rst b/test_plans/unit_tests_kni_test_plan.rst
index c77d887..793dd47 100644
--- a/test_plans/unit_tests_kni_test_plan.rst
+++ b/test_plans/unit_tests_kni_test_plan.rst
@@ -45,6 +45,10 @@ script (launched using ``make test``) that sends commands to
 the application and checks the results. A test report is displayed on
 stdout.
 
+Case config::
+
+   For enable KNI features, need to set the "CONFIG_RTE_KNI_KMOD=y" in ./config/common_base and re-build DPDK.
+
 The steps to run the unit test manually are as follow::
 
   # make -C ./app/test/
-- 
2.17.1