Merge "Define and use default request in Ikev2VpnRunner" am: d4235a815c am: 1a2d80e256 am: 1cf1feee5f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1495898

Change-Id: I186ebe2809da7535723fe0de91ec95d691f16548