Default the lastSelectetNetworkId to -1

Test: adb shell am instrument -e class android.net.RecommendationRequestTest  -w com.android.frameworks.coretests/android.support.test.runner.AndroidJUnitRunner
Bug: 35045563
Change-Id: I04d71f2072d8a5a706f05905b580dd7af77d13d8
2 files changed