Make libpng buildable for native_bridge

Bug: http://b/153609531

Test: m libpng.native_bridge

Change-Id: Icdaec158a0a9fb2f0c3bdf0796e834346578e620
Merged-In: Icdaec158a0a9fb2f0c3bdf0796e834346578e620
diff --git a/Android.bp b/Android.bp
index c6c284a..72cd340 100644
--- a/Android.bp
+++ b/Android.bp
@@ -50,6 +50,8 @@
 cc_library {
     name: "libpng",
     vendor_available: true,
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     recovery_available: true,
     vndk: {
         enabled: true,