MT#55283 ignore a=fmtp for G.722

We don't parse these out and formats should be compatible.

Change-Id: Ie106591f3d12539eb1101793b50df9db97637625

lib/codeclib.c

@@ -448,6 +448,7 @@ static struct codec_def_s __codec_defs[] = {
 		.default_clockrate = 8000,
 		.default_channels = 1,
 		.default_ptime = 20,
+		.format_cmp = format_cmp_ignore,
 		.packetizer = packetizer_samplestream,
 		.bits_per_sample = 4,
 		.media_type = MT_AUDIO,