Merge changes from topics "move-kerneltotag", "move-socket-tagging-to-mainline" am: ec7461850f am: 101bbfd2a2 am: e6dd1b01db

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1964912

Change-Id: I6aeb7c5a17dc10232c6fe678330b7a9185c03f9b