Some OEMs have introduced incompatible network bookkeeping. We now
detect and ignore those network definitions at restore time.
In addition, we now
* log when an undefined network match type is used to construct a
NetworkTemplate instance, and
* quietly refuse to match such a NetworkTemplate against any known
network identifier, rather than crashing the inquiring app.
Bug 38151335
Test: manual
Change-Id: I565b6f6b87df1f13a8c0c01ae6049bda270b1e48
fde4caf456