[automerger skipped] Update TEST_MAPPING for VPN tests am: c0671221 -s ours

am skip reason: Merged-In I9da0a93761dacf74c1a77862425fcf34d8cce877 with SHA-1 b432ba3f is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26453882



Change-Id: I3b5fb861346bda866c7f969a9962635edb70f873
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>