wembley: more correct sysfs_net labelling am: 09e9b1906d am: be41797987

Original change: https://android-review.googlesource.com/c/device/mediatek/wembley-sepolicy/+/2317079

Change-Id: Idf20db2c88ea3b16c525b07ed987819959f46758
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>