TT#185100 fix codec-set with bitrate for Opus

Allow override the bitrate if one is already set, as opus_init()
initially sets a default bitrate, which is then overridden by codec-set.

Change-Id: Id0253d23a8f5de977e30d296872ea1df01fdbfbc
(cherry picked from commit 12d59b06ee)

daemon/codec.c

@@ -4050,7 +4050,7 @@ static int __codec_options_set1(struct call *call, struct rtp_payload_type *pt,
 		return 0;
 	}
 	// match - apply options
-	if (!pt->bitrate)
+	if (pt_parsed->bitrate)
 		pt->bitrate = pt_parsed->bitrate;
 	if (!pt->codec_opts.len && pt_parsed->codec_opts.len) {
 		str_free_dup(&pt->codec_opts);