Bug 1474528 [wpt PR 11879] - Update wpt metadata, a=testonly

wpt-pr: 11879
wpt-type: metadata

testing/web-platform/meta/wake-lock/wakelock-type.https.html.ini

@@ -11,3 +11,9 @@
   ['WakeLockTypeNotSupported' is thrown when set an unsupported wake lock type]
     expected: FAIL
 
+  ['NotSupportedError' is thrown when set an empty wake lock type]
+    expected: FAIL
+
+  ['NotSupportedError' is thrown when set an unsupported wake lock type]
+    expected: FAIL
+