TT#22069 TT#22070 Fix 84e0258c: remove unnecessary quotes for sems packages check

Otherwise checks are failing:
> Package: ngcp-sems-app: installed: doesn't match, expect: ["false"] found: [false]
> Package: ngcp-sems-ha: installed: doesn't match, expect: ["false"] found: [false]

Change-Id: I171f52502f591ba0018b148329ed27337295af1e

templates/310_package-ngcp.yaml.tt2

@@ -15,7 +15,7 @@ package:
     installed: [% general.ngcp_type != 'spce' ? 'true' : 'false' %]
 
   ngcp-sems-app:
-    installed: 'false'
+    installed: false
 
   ngcp-sems-ha:
-    installed: 'false'
+    installed: false