pr-13432-c46b2a vs. 2503-89 / mtl-osx-m1 / mii-channel

pr-13432-c46b2a (c46b2ae7) Diff 2503-89 (99cde4e2)
Failure 08977956bb6ddf43ea6386358541d101256666fa
Failure 1724f2c45a889565f861952e318fa7c30fd03ef5
Failure 6486264e79d2cd6625c806f2fbb73a35966afbde