RECONNCT fix broken reconnect for iov out vectors

We where modifying out_offset and out_len in iscsi_write_to_socket().
If the packet that was being sent before reconnect was a write command
the was a significant change that out_offset and out_len where already
touched. When requeing the packet after reconnect we where
sending garbage!

Signed-off-by: Peter Lieven <pl@kamp.de>

lib/connect.c

@@ -308,6 +308,7 @@ try_again:
 		iscsi->statsn++;
 
 		pdu->written = 0;
+		pdu->out_written = 0;
 		iscsi_add_to_outqueue(iscsi, pdu);
 	}
 
@@ -341,6 +342,7 @@ try_again:
 		iscsi->statsn++;
 
 		pdu->written = 0;
+		pdu->out_written = 0;
 		iscsi_add_to_outqueue(iscsi, pdu);
 	}