Synchronously update APs in during forceUpdate.

This helps with jank in the Wifi Picker.

Bug: b/36406983
Test: runtest --path
frameworks/base/packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/WifiTrackerTest.java

Change-Id: Ia667940dd12dc910f7658da445637268132a0058
2 files changed