Add csit case for Individual Network Service Descriptor

Issue-ID: INT-1015
Signed-off-by: Olivia.Zhan <zhan.jie1@zte.com.cn>
Change-Id: Ieb5a1c81f5c38742ad43d78f99734f32fd6ad337
diff --git a/plans/vfc-nfvo-catalog/sanity-check/testplan.txt b/plans/vfc-nfvo-catalog/sanity-check/testplan.txt
index ad2cf7d..b324d22 100644
--- a/plans/vfc-nfvo-catalog/sanity-check/testplan.txt
+++ b/plans/vfc-nfvo-catalog/sanity-check/testplan.txt
@@ -8,3 +8,4 @@
 vfc/nfvo-catalog/VNFPackageContent.robot
 vfc/nfvo-catalog/PNFDescriptors.robot
 vfc/nfvo-catalog/NSDescriptors.robot
+vfc/nfvo-catalog/IndividualNSDescriptor.robot