Add permissions to shell to enable testing

Adding MANAGE_WEAK_ESCROW_TOKEN and to Shell so the API can be called from tests.

Bug: 209632699
Test: Builds, boots. atest WeakEscrowTokenAutoFeatureTest
Ignore-AOSP-First: brand new permissions
Change-Id: If0a157903c605347a5b26625a735433caf27bcb1
2 files changed