Commit b4ce2cd097 for aom

commit b4ce2cd097b00921b0327bfb5f07b5f8361ade99
Merge: c729980efa 44d0a57786
Author: Wan-Teh Chang <wtc@google.com>
Date:   Tue Sep 22 14:46:04 2026 -0700

    Merge tag 'v3.15.1' into main branch

    Release v3.15.1

    2026-09-21 v3.15.1
      This release is ABI compatible with the last release. See
      https://aomedia.googlesource.com/aom/+log/v3.15.0..v3.15.1 for all the
      commits in this release.

      - Bug Fixes
        * b:558679217: Tune VMAF mode regression

    Bug: 564595707
    Change-Id: I5158b893f5112f7888844b51ccd0a6f10dfb5fa6