Fix other String.format issues in NetworkNotificationManager.java

Commit fb2609d3 added a string
format which caused an exception.  On top of the fixes to this
from e1406167, we can also fix
a few more issues here with some missing arguments to other
String.format invocations in the aforementioned CL, and other
formatting problems.

Bug: 33737715
Test: Build and run SUW
Change-Id: I13410ffebbc606b8801656ea0934f96ccd4b5357