ASoC: qcom: q6afe-dai: fix Display Port Playback stream name

With recent changes to add more display ports did not change the Stream
name in q6afe-dai. This results in below error
"ASoC: Failed to add route DISPLAY_PORT_RX -> Display Port Playback(*)"
and sound card fails to probe.

Fix this by adding correct stream name.

Fixes: 90848a2 ("ASoC: qcom: q6dsp: add support to more display ports")
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705124850.40069-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Srinivas-Kandagatla

sound/soc/qcom/qdsp6/q6afe-dai.c

@@ -476,7 +476,7 @@ static int q6afe_mi2s_set_sysclk(struct snd_soc_dai *dai,
 
 static const struct snd_soc_dapm_route q6afe_dapm_routes[] = {
 	{"HDMI Playback", NULL, "HDMI_RX"},
-	{"Display Port Playback", NULL, "DISPLAY_PORT_RX"},
+	{"DISPLAY_PORT_RX_0 Playback", NULL, "DISPLAY_PORT_RX"},
 	{"Slimbus Playback", NULL, "SLIMBUS_0_RX"},
 	{"Slimbus1 Playback", NULL, "SLIMBUS_1_RX"},
 	{"Slimbus2 Playback", NULL, "SLIMBUS_2_RX"},