Ensure activity state being updated to deflake test am: 44b8a2e871 am: 31f81cdbde am: 5f0f071f1c am: 227c9fdc59 am: 5c9fa26538

Original change: https://android-review.googlesource.com/c/platform/packages/modules/CaptivePortalLogin/+/2057251

Change-Id: I7b3671d3de567edb0448c9aab2086a7fd000143b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>