Merge "installd: add missing <functional> for std::function." into main am: a6ec7859db am: e3baf563c8 am: 33bcca6e4c

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

Change-Id: I36f9a8a4000301ca2e96f685e9eeb9774b5ac42a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>