Make libpng recovery_available

Bug: 110380063
Test: Compiles, recovery works
Change-Id: Ia48da40661720b216fa04a6d7335cbe945d5f96f
diff --git a/Android.bp b/Android.bp
index 3742470..8daf08d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -76,6 +76,7 @@
 cc_library {
     name: "libpng",
     vendor_available: true,
+    recovery_available: true,
     vndk: {
         enabled: true,
     },