Fix brightness icon in theme pack.

Update all icon packs from latest mapping.

Fixes: 129694423
Test: make
Change-Id: I537f080b9ab6cdc02421fd37cac97cf937184e78
diff --git a/packages/overlays/IconPackCircularSettingsOverlay/res/drawable/ic_gray_scale_24dp.xml b/packages/overlays/IconPackCircularSettingsOverlay/res/drawable/ic_gray_scale_24dp.xml
new file mode 100644
index 0000000..4e5497a
--- /dev/null
+++ b/packages/overlays/IconPackCircularSettingsOverlay/res/drawable/ic_gray_scale_24dp.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Copyright (C) 2019 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:viewportHeight="24"
+    android:viewportWidth="24"
+    android:width="24dp" >
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M12,2C6.48,2,2,6.48,2,12s4.48,10,10,10c5.52,0,10-4.48,10-10S17.52,2,12,2z M12,17v-1.5h7.74 c-0.24,0.53-0.54,1.03-0.88,1.5H12z M12,14v-1.5h8.47c-0.03,0.51-0.1,1.01-0.22,1.5H12z M12,11V9.5h8.12 c0.15,0.48,0.25,0.99,0.31,1.5H12z M12,8V6.5h6.47c0.39,0.46,0.74,0.96,1.03,1.5H12z M16.81,5H12V3.5C13.79,3.5,15.44,4.06,16.81,5 z M3.5,12c0-4.17,3.03-7.65,7-8.36v16.72C6.53,19.65,3.5,16.17,3.5,12z M12,18.5h5.47c-1.48,1.25-3.39,2-5.47,2V18.5z" />
+</vector>
\ No newline at end of file