Add SELinux policy for legacy permission service.

The updatable and non-updatable permission manager cannot share one
AIDL, so we need to create a new system service for the non-updatable
legacy one, and add the SELinux policy for it.

Bug: 158736025
Test: presubmit
Change-Id: Ief8da6335e5bfb17d915d707cf48f4a43332f6ae
4 files changed