Add "product_available" to product available modules am: f4aa217fec am: 09aa8c08be am: 3e285cbd9f

Original change: https://android-review.googlesource.com/c/platform/external/libcxxabi/+/1495797

Change-Id: I35ad90c32362e51b147de5d22d8d4bd4acb26d10