This test checks that if a VPN declares an underlying network that does not exist, the capabilities of that network are applied to the VPN as soon as the network starts to exist. Bug: 172870110 Test: test-only change Change-Id: Icc0701cb4cea7d91f7738c1e426e94cd26686b74 Merged-In: Icc0701cb4cea7d91f7738c1e426e94cd26686b74 (cherry picked from commit a21b2252e0b0eccd482b3b69e67b8911b94dba73)