Fix FastBitmapDrawable disabled color filter.

Fixes: 206977386
Test: Disabled/re-enabled an app and added test preload icon.
Change-Id: I708708e808366149ec004303472e067afa4c95f6
diff --git a/iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawable.java b/iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawable.java
index 4aa2846..2a5f029 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawable.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawable.java
@@ -287,7 +287,7 @@
         mat[14] = brightnessI;
         mat[18] = disabledAlpha;
         tempFilterMatrix.preConcat(tempBrightnessMatrix);
-        return new ColorMatrixColorFilter(tempBrightnessMatrix);
+        return new ColorMatrixColorFilter(tempFilterMatrix);
     }
 
     protected static class FastBitmapConstantState extends ConstantState {