[automerge] Export proguard.flags, manifest and sources for use by SettingsGoogle 2p: 38d3b0fa18

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/13630934

Change-Id: Ib371c7b6779f7e7ecde0e1eec489cc3a0672ed42