Add missing delegate in Bitmap_Delegate

New nativeCopyAshmemConfig

Change-Id: I8aedb0df827ac8d8091a9457bc341c1047b5a539
diff --git a/bridge/src/android/graphics/Bitmap_Delegate.java b/bridge/src/android/graphics/Bitmap_Delegate.java
index 6d8ecd7..f1da3a2 100644
--- a/bridge/src/android/graphics/Bitmap_Delegate.java
+++ b/bridge/src/android/graphics/Bitmap_Delegate.java
@@ -303,6 +303,13 @@
     }
 
     @LayoutlibDelegate
+    /*package*/ static Bitmap nativeCopyAshmemConfig(long nativeSrcBitmap, int nativeConfig) {
+        // Unused method; no implementation provided.
+        assert false;
+        return null;
+    }
+
+    @LayoutlibDelegate
     /*package*/ static long nativeGetNativeFinalizer() {
         synchronized (Bitmap_Delegate.class) {
             if (sFinalizer == -1) {