TBR: veyron/services/mgmt/device: Fix mistakenly (but silently) messed up device manager test.

I accidentally undid a change Robin had made to make the principal in tests
unrelated to the principal used by the device manager (which is run
under the modules system and therefore has a related identity by default).

This fixes it.

Change-Id: I75919c0a7e68599b1cfaa2eea486f67a6cc62967
1 file changed
tree: 753a0a16f3a97f0305346db319150cc9e44d01d2
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/