api: avoid socket timeouts when executing commands (docker/docker-py#…

…3125)

Only listen to read events when polling a socket in order
to avoid incorrectly trying to read from a socket that is
not actually ready.

Cherry-picked from docker/docker-py@c5e582c

Co-authored-by: Loïc Leyendecker <loic.leyendecker@gmail.com>

plugins/module_utils/_api/utils/socket.py

@@ -48,7 +48,7 @@ def read(socket, n=4096):
  select.select([socket], [], [])
  else:
  poll = select.poll()
- poll.register(socket)
+ poll.register(socket, select.POLLIN | select.POLLPRI)
  poll.poll()
 
  try: