git-qt-merge-mainlines: Add qtwebsockets to the default list

Change-Id: I118f57de2210bf361ec24d8fb32ca18f753a4c59
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>

bin/git-qt-merge-mainlines

@@ -38,6 +38,7 @@ DEFAULT_MODULE_LIST = [
     'qttools',
     'qtwebkit',
     'qtwebkit-examples',
+    'qtwebsockets',
     'qtwinextras',
     'qtxmlpatterns',
     'qtx11extras',