Use the new OemLockService to get OEM lock state.

Previously, the PersistentDataBlockService but that is only one possible
implementation of the OEM lock. The new service abstracts the
implementation so is the API that should be used.

Test: Manual
Bug: 34766843
Change-Id: I5f9cb94996f84c4c082d152f05cd8aef566edc66
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9f266b6..66068eb 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -73,6 +73,7 @@
     <uses-permission android:name="android.permission.MANAGE_DEVICE_ADMINS" />
     <uses-permission android:name="android.permission.READ_SEARCH_INDEXABLES" />
     <uses-permission android:name="android.permission.OEM_UNLOCK_STATE" />
+    <uses-permission android:name="android.permission.MANAGE_USER_OEM_UNLOCK_STATE" />
     <uses-permission android:name="android.permission.OVERRIDE_WIFI_CONFIG" />
     <uses-permission android:name="android.permission.USE_FINGERPRINT" />
     <uses-permission android:name="android.permission.MANAGE_FINGERPRINT" />