hal: audio: dts-passthru: Stutter sound for DTS re-encoding

-DTS re-encoding give out core extension stream for which
hdmi sample rate should be 48000Hz.
Changing the default sample rate from 192000Hz to 48000Hz.

CRs-fixed: 2092398

Change-Id: Ida9af4089b80982f29d5583432ee7d3e536a0a59
diff --git a/hal/audio_extn/passthru.c b/hal/audio_extn/passthru.c
index ee9995c..63f4d92 100644
--- a/hal/audio_extn/passthru.c
+++ b/hal/audio_extn/passthru.c
@@ -135,9 +135,9 @@
     }
 
     if (!is_valid_transmission_rate) {
-        ALOGE("%s:: Invalid dts transmission rate %d\n using default sample rate 192000",
+        ALOGE("%s:: Invalid dts transmission rate %d\n using default sample rate 48000",
                dtshd_tr_info.sample_rate);
-        out->sample_rate = 192000;
+        out->sample_rate = 48000;
         out->compr_config.codec->sample_rate = out->sample_rate;
     }