Change usages of com.google.android to com.google.common.

The people app contains usages of both com.google.android and com.google.common.
Changing code to use the later guava library since it will be needed to unbundle
the app in the future.

Change-Id: I2700126e020166ea1bbbd87c40e77428efde41f3
diff --git a/src/com/android/contacts/ContactSaveService.java b/src/com/android/contacts/ContactSaveService.java
index b8bf45f..8b870d2 100644
--- a/src/com/android/contacts/ContactSaveService.java
+++ b/src/com/android/contacts/ContactSaveService.java
@@ -22,8 +22,8 @@
 import com.android.contacts.model.EntityDeltaList;
 import com.android.contacts.model.EntityModifier;
 import com.android.contacts.util.CallerInfoCacheUtils;
-import com.google.android.collect.Lists;
-import com.google.android.collect.Sets;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
 
 import android.app.Activity;
 import android.app.IntentService;