[automerger skipped] Make libpng buildable for native_bridge am: dff687c088 am: 469cbcab73 -s ours

am skip reason: Change-Id Icdaec158a0a9fb2f0c3bdf0796e834346578e620 with SHA-1 dff687c088 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libpng/+/12128186

Change-Id: I8f6dde2fca74ba0430809c1ad3c394c802cb8a35