Remove NetworkPermissionConfig package

Move declaration of MAINLINE_NETWORK_STACK permission from the
NetworkPermissionConfig package to the NetworkStack package.

Bug: 223649084
Test: m
Merged-In: I4bc42e1e8774f0bed99f29eeda0ef51fa6d8fb72
(cherry picked from 2f41e464b85c29aa2998a10790d7f1f23805b3d4)
Merged-In: Id9fae961468457e88354a220fe86dc18df37258e

Change-Id: Ib57ebbf4cf0ee60fb28281823a5d00709bd88859
3 files changed