Fix Bug 2091: NS Update on NS Instances fail with database exception on screen when VNFD ID is incorrect

	- Changed the VNFD ID text field to dropdown field with VNFD Name listed
	- Changed the NSUpdate popup message

Change-Id: Iacf6572eb7e56cfd97a8e871d4671f56c6eb94ba
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>
diff --git a/src/assets/i18n/en.json b/src/assets/i18n/en.json
index 2dfbd94..cb4ac32 100644
--- a/src/assets/i18n/en.json
+++ b/src/assets/i18n/en.json
@@ -191,6 +191,9 @@
     "MEMORYMB": "Memory MB",
     "STORAGEGB": "Storage GB",
     "VCPUCOUNT": "VCPU Count",
+    "UPDATENS": "Update NS",
+    "GENERICCONTENT": "This action involves recreating the resources of this VNF. Are you sure you want to proceed",
+    "VNFDNAME": "Vnfd Name",
     "PAGE": {
         "DASHBOARD": {
             "DASHBOARD": "Dashboard",