Allow shell to acquire wakelock.

b/30832947

Change-Id: I348ab5642ca625b4700ec63f72414729d574da5e
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index f1789ea..227d0e9 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -114,6 +114,8 @@
     <uses-permission android:name="android.permission.CHANGE_COMPONENT_ENABLED_STATE" />
     <!-- Permission needed to rename bugreport notifications (so they're not shown as Shell) -->
     <uses-permission android:name="android.permission.SUBSTITUTE_NOTIFICATION_APP_NAME" />
+    <!-- Permission needed to hold a wakelock in dumpstate.cpp (drop_root_user()) -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
 
     <application android:label="@string/app_label"
                  android:defaultToDeviceProtectedStorage="true"