Move //mojo/services/network/public/interfaces to //mojo/services/network/interfaces.

Also, update this directory to exactly match the one in monet at
0a814ed5512598e595c0ae7975a09d90a7a54e90 (aside from changes required by
the move, this only updates the BUILD.gn in that directory in a minor
way).

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/1404443004 .
diff --git a/services/vanadium/security/BUILD.gn b/services/vanadium/security/BUILD.gn
index 5959ab4..5142a6c 100644
--- a/services/vanadium/security/BUILD.gn
+++ b/services/vanadium/security/BUILD.gn
@@ -11,6 +11,9 @@
     "wire_blessings.go",
   ]
   deps = [
+    "//mojo/public/interfaces/network",
+    "//mojo/services/authentication/interfaces",
+    "//mojo/services/network/interfaces",
     "//mojo/services/vanadium/security/interfaces",
   ]
 }