audio: Fix usb disable sidetone property name

Limit length of the property name to adhere to property max length

CRs-Fixed: 1770914
Change-Id: Iba244dd21fc6ba00fd0f7935c59ff258795316b8
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 5a7b9d4..ea6b743 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -5780,10 +5780,14 @@
     int ret;
     if ((out_snd_device == SND_DEVICE_OUT_USB_HEADSET) ||
          (out_snd_device == SND_DEVICE_OUT_USB_HEADPHONES)) {
+        if (property_get_bool("audio.usb.disable.sidetone", 0)) {
+            ALOGI("Debug: Disable sidetone");
+        } else {
             ret = audio_extn_usb_enable_sidetone(out_snd_device, enable);
             if (ret)
                 ALOGI("%s: usb device %d does not support device sidetone\n",
                   __func__, out_snd_device);
+        }
     } else {
         ALOGV("%s: sidetone out device(%d) mixer cmd = %s\n",
               __func__, out_snd_device, str);
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index efca62d..5e77632 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -5684,7 +5684,7 @@
     int ret;
     if ((out_snd_device == SND_DEVICE_OUT_USB_HEADSET) ||
             (out_snd_device == SND_DEVICE_OUT_USB_HEADPHONES)) {
-        if (property_get_bool("audio.debug.usb.disable_sidetone", 0)) {
+        if (property_get_bool("audio.usb.disable.sidetone", 0)) {
             ALOGI("Debug: Disable sidetone");
         } else {
             ret = audio_extn_usb_enable_sidetone(out_snd_device, enable);