libmemif: Connection request APIs

Add APIs that allow changing reconnect timer and request connection.
First connection request is automatically sent once slave interface is created.

Change-Id: Ie3558b7b94a780b046755f7f0ac6c3dcf07633e4
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
diff --git a/extras/libmemif/src/socket.c b/extras/libmemif/src/socket.c
index e1c3bd4..495cef9 100644
--- a/extras/libmemif/src/socket.c
+++ b/extras/libmemif/src/socket.c
@@ -681,7 +681,6 @@
 
   DBG ("recvmsg fd %d", ifd);
   size = recvmsg (ifd, &mh, 0);
-  DBG ("done");
   if (size != sizeof (memif_msg_t))
     {
       if (size == 0)
@@ -903,8 +902,8 @@
 memif_read_ready (int fd)
 {
   int err;
-  DBG ("call recv");
+
   err = memif_msg_receive (fd);
-  DBG ("recv finished");
+
   return err;
 }