LIBMSC: Place correct dst address in status report

gsm_04_11.c: gsm340_gen_sms_status_report_tpdu()

When we construct the status report PDU, use sms->src
instead of sms->dst as the destination address
This way we tell the MS that the message was delivered
to the destination and not to itself.
This is relevant for phones that display a textual
representation of the delivery report.

Change-Id: I2d4f87ac777465de9bfb5a775a789a2691755ee9
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
index eede74c..f87acea 100644
--- a/src/libmsc/gsm_04_11.c
+++ b/src/libmsc/gsm_04_11.c
@@ -303,7 +303,7 @@
 	*smsp = sms->msg_ref;
 
 	/* generate recipient address */
-	oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->dst);
+	oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->src);
 	if (oa_len < 0)
 		return -ENOSPC;