fix handling of PORT_PROFILE_RESPONSE_INPROGRESS netlink message

During function test of the 802.1Qbg implementation in lldpad we came
across a small problem in the handling of the netlink message
corresponding to PORT_PROFILE_RESPONSE_INPROGRESS. This should not
result in returning the default rc=1.

- src/util/macvtap.c: fix getPortProfileStatus() to return 0 in that
  case and also fix an indentation problem

src/util/macvtap.c

@@ -1025,6 +1025,7 @@ getPortProfileStatus(struct nlattr **tb, int32_t vf,
         if (is8021Qbg) {
             /* no in-progress here; may be missing */
             *status = PORT_PROFILE_RESPONSE_INPROGRESS;
+            rc = 0;
         } else {
             msg = _("no IFLA_PORT_RESPONSE found in netlink message");
             goto err_exit;