Merge "libbinder: RPC sockets - remove unnecessary SIGHUP" am: 3bb5fa61e0 am: 317cf4b296 am: 1888932b8e

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1774255

Change-Id: Ib392d16d7904b1b745256fc3b35bf50142e86036