Merge "Send a proxy broadcast when apps moved from/to a VPN" am: cfc86ef0f6 am: f7aa7c51ee

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1717735

Change-Id: I12ec4b1c5e4123c9e13219ec0e83858bf1ec09ea