[WIFI] Expose lastConnectUid as SystemApi

Per request from OEM which uses information. The information is as
useful as already present and exposed fields.

Bug: 172400851
Test: atest android.net.wifi
Change-Id: Ic39ebfb62d078bf57165185e5fb3781285d644d3
3 files changed
tree: e8c5d1fab82baffd40282fa265f8d0d06199e5bb
  1. framework/
  2. OsuLogin/
  3. OWNERS