Merge upstream ethtool v5.6 am: 9b9c7a7d2b am: fdb59a332f am: 2353d45a92

Original change: https://android-review.googlesource.com/c/platform/external/ethtool/+/2802332

Change-Id: Ic2d53d35e58ef152c04674c73d5f0c0f5201f43d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>