[automerger skipped] Create exported mode flag library for package android.os" am: e8b6adbd53 -s ours

am skip reason: Merged-In I445d8e8fecc1fead739847c756cfba66a384c978 with SHA-1 d447c13793 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3165262

Change-Id: I020ab4929eb3b486e17082c16ddf0b3dd185636c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>