Add nav graph start for PermissionAppsFragment

Ensure applications that call into the Permission Controller with the
intent MANAGE_PERMISSION_APPS have the nav graph set properly

Fixes: 146350217
Test: Navigate to the "Location" settings tab, select "App Permission",
and then click on any app in the list.

Change-Id: I811d13e1c33d171321ee3b67c668baf0e3a5a593