RESTRICT AUTOMERGE Ignore weak symbol difference in libc++ ABI check am: ddcf30d384 am: 1764bfe7d8

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libcxx/+/18607875

Change-Id: I1cf3680debcda3452dbd2ae937b0118a672d12e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>