From: Martin Schwidefsky <schwidefsky@de.ibm.com>

IUCV interface fixes:
 - VM workaround: redirect setmask call to cpu 0.
 - Disable message interrupts during connection setup.
 - Honor incoming connection severed during connection setup.
 - Add connect retry when remote severed connection.
 - Add symlinks between net device and iucv device.
 - More fixes for proper net device allocation/deallocation.