[rsl] Set the right state when asking for the activation.

Set the state to activation to avoid a warning about the
getting a CHAN ACK without waiting for it. We set it in
the code to make sure it is set after all error checking
to avoid inconsistent state as the state is only set back
to NONE/ACT due replies from the BTS.
diff --git a/openbsc/src/handover_logic.c b/openbsc/src/handover_logic.c
index 7352d64..b2ffe46 100644
--- a/openbsc/src/handover_logic.c
+++ b/openbsc/src/handover_logic.c
@@ -134,6 +134,7 @@
 		return rc;
 	}
 
+	rsl_lchan_set_state(new_lchan, LCHAN_S_ACT_REQ);
 	llist_add(&ho->list, &bsc_handovers);
 	/* we continue in the SS_LCHAN handler / ho_chan_activ_ack */