Do not allow data setup while tearing down all

When all networks are pending tear down, we should
not allow new data network setup.

Fix: 216043593
Test: Manual
Merged-In: I53fcae0c72413fa24644f3ce4a2cf22a53cc410f
Change-Id: I53fcae0c72413fa24644f3ce4a2cf22a53cc410f