Merge "installd: add missing <functional> for std::function." into main am: a6ec7859db am: e3baf563c8 am: 33bcca6e4c am: 11867e366b

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

Change-Id: I7bd3fffdd0d6b75573343c25fc53ae9227afcfc6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>