ASoC: bt-sco: fix double definitions of playback and capture streams

This commit fixes following errors and warning in dmesg:
    debugfs: File 'Playback' in directory 'dapm' already present!
    debugfs: File 'Capture' in directory 'dapm' already present!
    asoc-simple-card sound-sco: ASoC: source widget Capture overwritten

Signed-off-by: Mikhail Vanyulin <mikhail.vanyulin@rtsoft.de>

sound/soc/codecs/bt-sco.c

@@ -41,14 +41,14 @@ static struct snd_soc_dai_driver bt_sco_dai[] = {
 	{
 		.name = "bt-sco-pcm-wb",
 		.playback = {
-			.stream_name = "Playback",
+			.stream_name = "Playback_8_16",
 			.channels_min = 1,
 			.channels_max = 1,
 			.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
 			.formats = SNDRV_PCM_FMTBIT_S16_LE,
 		},
 		.capture = {
-			 .stream_name = "Capture",
+			 .stream_name = "Capture_8_16",
 			.channels_min = 1,
 			.channels_max = 1,
 			.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,