Add required permission to NetworkStack

The permission of NetworkStack is moved to a separate xml file,
add the xml module to the required field of networkstack app.

Bug: 151213404
Test: NetworkStackTests
Ignore-AOSP-First: merge conflict resolutions
Change-Id: I2e6f3f476fdac8efa0029c82a338c1d9781a5bdf
1 file changed