Add CTS for systemReady() & getIpSecNetIdRange()

Bug: 182963354
Test: 1. atest CtsNetTestCases:ConnectivityManagerTest
      2. atest CtsNetTestCasesLatestSdk:ConnectivityManagerTest
Original-Change: https://android-review.googlesource.com/1676425
Merged-In: I0b286f32389501402e552010546c62f3e56833d6
Change-Id: I0b286f32389501402e552010546c62f3e56833d6
1 file changed