[S390]: Rewrite of the IUCV base code, part 2

Add rewritten IUCV base code to net/iucv.

Signed-off-by: Frank Pavlic <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Martin Schwidefsky

arch/s390/defconfig

@@ -179,6 +179,7 @@ CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
 # CONFIG_XFRM_SUB_POLICY is not set
 CONFIG_NET_KEY=y
+CONFIG_IUCV=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 # CONFIG_IP_ADVANCED_ROUTER is not set