audio: add operator specific device change

Bug: 22469108
Change-Id: Ibfd9a6bbfda2818529b24a2af04eeb2f888b0f8b
diff --git a/hal/msm8960/platform.c b/hal/msm8960/platform.c
index 2f596ba..06663a4 100644
--- a/hal/msm8960/platform.c
+++ b/hal/msm8960/platform.c
@@ -423,6 +423,13 @@
     return -ENOSYS;
 }
 
+void platform_add_operator_specific_device(snd_device_t snd_device,
+                                           const char *operator,
+                                           const char *mixer_path,
+                                           unsigned int acdb_id)
+{
+}
+
 int platform_send_audio_calibration(void *platform, snd_device_t snd_device)
 {
     struct platform_data *my_data = (struct platform_data *)platform;