Allow adbd to access /proc/net/{tcp,tcp6,udp,udp6} am: f7727ace66 am: 84f6646c7c am: 8bac0a5547 am: 82d397e19d am: 40654af0fd

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/sepolicy/+/16602719

Change-Id: Ife244a7afa78968021e0a7f823260a63c064d2b5