Rename KEY_VOICE_PRIVACY_DISABLE_BOOL -> KEY_VOICE_PRIVACY_DISABLE_UI_BOOL

Disabling voice privacy sounds scary. Update this config variable name
to what it actually does, which is to hide some settings UI.

Bug: 21571894
Change-Id: I165f9e91cee6b7c7572d8540d63519f1454ece9e
diff --git a/src/com/android/phone/CallFeaturesSetting.java b/src/com/android/phone/CallFeaturesSetting.java
index d3d9dcf..a083b7f 100644
--- a/src/com/android/phone/CallFeaturesSetting.java
+++ b/src/com/android/phone/CallFeaturesSetting.java
@@ -243,7 +243,7 @@
                     prefSet.removePreference(fdnButton);
 
                     if (!carrierConfig.getBoolean(
-                            CarrierConfigManager.KEY_VOICE_PRIVACY_DISABLE_BOOL)) {
+                            CarrierConfigManager.KEY_VOICE_PRIVACY_DISABLE_UI_BOOL)) {
                         addPreferencesFromResource(R.xml.cdma_call_privacy);
                     }
                 } else if (phoneType == PhoneConstants.PHONE_TYPE_GSM) {
diff --git a/src/com/android/phone/CdmaCallOptions.java b/src/com/android/phone/CdmaCallOptions.java
index 9131ad6..4a5f229 100644
--- a/src/com/android/phone/CdmaCallOptions.java
+++ b/src/com/android/phone/CdmaCallOptions.java
@@ -59,7 +59,7 @@
             carrierConfig = PhoneGlobals.getInstance().getCarrierConfig();
         }
         if (subInfoHelper.getPhone().getPhoneType() != PhoneConstants.PHONE_TYPE_CDMA
-                || carrierConfig.getBoolean(CarrierConfigManager.KEY_VOICE_PRIVACY_DISABLE_BOOL)) {
+                || carrierConfig.getBoolean(CarrierConfigManager.KEY_VOICE_PRIVACY_DISABLE_UI_BOOL)) {
             // disable the entire screen
             getPreferenceScreen().setEnabled(false);
         }