Support CdmaVoicePrivacySwitchPreference for multi-sim.

Test: Manual
Bug: 131461840
Change-Id: I64ee1a4e8b97a72bfec52b9be6dcbe5154ea9600
Merged-In: I64ee1a4e8b97a72bfec52b9be6dcbe5154ea9600
diff --git a/src/com/android/phone/CdmaVoicePrivacySwitchPreference.java b/src/com/android/phone/CdmaVoicePrivacySwitchPreference.java
index b79a3f0..0192c2a 100644
--- a/src/com/android/phone/CdmaVoicePrivacySwitchPreference.java
+++ b/src/com/android/phone/CdmaVoicePrivacySwitchPreference.java
@@ -102,4 +102,8 @@
             phone.getEnhancedVoicePrivacy(obtainMessage(MESSAGE_GET_VP));
         }
     }
+
+    public void setPhone(Phone phone) {
+        this.phone = phone;
+    }
 }