Add missing readString in call log restore.

The restore process was missing a "readString" which caused
restore to fail.

Test: Backup call log, factory reset, restore from backup.
Fixes: 129934589
Change-Id: I52dc107b632ca3b79e0184500f992e481f0d4f8f
diff --git a/src/com/android/calllogbackup/CallLogBackupAgent.java b/src/com/android/calllogbackup/CallLogBackupAgent.java
index 0cee3f2..ca0613b 100644
--- a/src/com/android/calllogbackup/CallLogBackupAgent.java
+++ b/src/com/android/calllogbackup/CallLogBackupAgent.java
@@ -383,6 +383,7 @@
                 readString(dataInput);
                 readString(dataInput);
                 readString(dataInput);
+                readString(dataInput);
                 readInteger(dataInput);
             }
             return call;