Really add qttools to the build

... and not qtscript accidentally, like in the previous change.

Change-Id: Ic8cd85ef7b149ffee7bc85ffa3fc9075f8a77c1b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

.gitmodules

@@ -41,8 +41,8 @@
 	recommends = qtdeclarative qtactiveqt
 	path = qttools
 	url = ../qttools.git
-	branch = dev
-	status = ignore
+	branch = wip/cmake
+	status = essential
 [submodule "qtxmlpatterns"]
 	depends = qtbase
 	recommends = qtdeclarative