Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

Bug: 161896447
Change-Id: Iafcccbdbdf3ff1078e87000e2ce560ff09b43f68
diff --git a/adb/sockets.cpp b/adb/sockets.cpp
index 13a4737..33b9524 100644
--- a/adb/sockets.cpp
+++ b/adb/sockets.cpp
@@ -856,7 +856,7 @@
     s->peer->shutdown = nullptr;
     s->peer->close = local_socket_close_notify;
     s->peer->peer = nullptr;
-    /* give him our transport and upref it */
+    /* give them our transport and upref it */
     s->peer->transport = s->transport;
 
     connect_to_remote(s->peer, std::string_view(s->smart_socket_data).substr(4));