bpo-31425: fix versionadded in docs and add attribution in NEWS (GH-9595)

Doc/library/socket.rst

@@ -198,7 +198,7 @@ created.  Socket addresses are represented as follows:
   family is represented as a ``(node, port)`` tuple where the *node* and *port*
   are non-negative integers.
 
-  .. versionadded:: 3.7
+  .. versionadded:: 3.8
 
 If you use a hostname in the *host* portion of IPv4/v6 socket address, the
 program may show a nondeterministic behavior, as Python uses the first address

Misc/NEWS.d/next/Library/2017-10-24-10-18-35.bpo-31425.1lgw47.rst

 Add support for sockets of the AF_QIPCRTR address family, supported by the
 Linux kernel. This is used to communicate with services, such as GPS or
-radio, running on Qualcomm devices.
+radio, running on Qualcomm devices. Patch by Bjorn Andersson.
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