Merge "installd: add missing <functional> for std::function." into main am: a6ec7859db am: e3baf563c8

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2673909

Change-Id: I9e43c63306a34392d8bcbfd51017b637ca5cd6c1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>