Upgrade libnl to 5248e1a45576617b349465997822cef34cbc5053 am: a296c1de94 am: 47c700cc38

Original change: https://android-review.googlesource.com/c/platform/external/libnl/+/3114606

Change-Id: I4b898ffc30d6b2395f91f0664b50ae71212920be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>