Workaround for bug 5082381 (EALREADY on ACL collision).

If connect() fails with EALREADY, then retry.

Unfortunately we also need to switch to a new FD. This is currently
safe, but its a little fragile to changes in the code (especially
if we ever expose the fd to applications) so it would be great to
fix this issue properly in the kernel sometime and revert this
commit.

Change-Id: I12fb6b7f2b8ca40f425f66b504754048c9460329