Permission: unify reference to permission

sometimes it was android.Manifest.permission.foo
sometimes it was Manifest.permission.foo
sometimes it was foo

Now it's foo.
No need to repeat it's a permission when this is used in a
@RequiresPermission or within a enforcePermission

Bug: 349682934
Flag: Exempt refactor
Test: None
Change-Id: I622ee2af5716d5dd4c55eae841270d07059a98cf