Add 'auto-converge' migration capability

The auto-converge migration capability allows the user to specify if they
choose live migration seqeunce to automatically detect and force convergence.

Signed-off-by: Chegu Vinod <chegu_vinod@hp.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
diff --git a/include/migration/migration.h b/include/migration/migration.h
index f0640e0..bc9fde0 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -125,6 +125,8 @@
 
 bool migrate_rdma_pin_all(void);
 
+bool migrate_auto_converge(void);
+
 int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
                          uint8_t *dst, int dlen);
 int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen);