Make WiFi network history be actually read

Reintroduced mistakenly removed line in WifiConfigStore.readNetworkHistory
which prevented any of the network history being read from file.

Bug: 20846840
Change-Id: Id98404bd40d48b8ee0fce6f668334460348fb495
1 file changed
tree: 301a984d3a59f4eee8602ffbd585088250cf4ef1
  1. service/