Combine network subtypes by default.

Subtype controls (3G-vs-4G) aren't exposed in the UI, so tracking
data with that granularity creates unnecessary overhead. For example,
some GSM networks can regularly flap between two subtypes.

Bug: 6118868
Change-Id: Id098891dba52336d00d0f96632a7924e228b4713
3 files changed
tree: 312213c383a1b3380e8b69c36012128d0791d43a
  1. core/
  2. services/
  3. wifi/