Grant shell permission to manage accessibility

Bug: 116118615
Test: make
Change-Id: I6caa663a09a9119cd62561ed746cd139025edf44
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index a090f6d..abce8cf 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -55,6 +55,7 @@
     <uses-permission android:name="android.permission.WRITE_SETTINGS" />
     <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
     <uses-permission android:name="android.permission.BROADCAST_STICKY" />
+    <uses-permission android:name="android.permission.MANAGE_ACCESSIBILITY" />
     <!-- Development tool permissions granted to the shell. -->
     <uses-permission android:name="android.permission.SET_DEBUG_APP" />
     <uses-permission android:name="android.permission.SET_PROCESS_LIMIT" />