[automerger skipped] [MS54.8] Add hiddenapi-unsupported-t.txt to apex Android.bp am: 4eccfdec89 -s ours

am skip reason: Merged-In I33e0d699086c87ce8e940036c9a52908bbbcf6c5 with SHA-1 dc72f289c1 is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1999073

Change-Id: Iaa18c62e12bec039416cab29a983102bc5b3303e