update uwp ver

Ix.NET/Source/System.Interactive.Tests.Uwp.DeviceRunner/project.json

@@ -1,15 +1,15 @@
 {
   "dependencies": {
-    "Microsoft.NETCore.UniversalWindowsPlatform": "5.2.0-rc3-3004432-00",
-    "xunit": "2.1.0",
-    "xunit.runner.devices": "2.0.0" 
+    "Microsoft.NETCore.UniversalWindowsPlatform": "5.2.2",
+    "xunit": "2.2.0-beta2-build3300",
+    "xunit.runner.devices": "2.1.0" 
   },
   "frameworks": {
     "uap10.0": {}
   },
   "runtimes": {
-    //"win10-arm": {},
-    //"win10-arm-aot": {},
+    "win10-arm": {},
+    "win10-arm-aot": {},
     "win10-x86": {},
     "win10-x86-aot": {},
     "win10-x64": {},