drmserver: audit permissions for /data/app

We would like to assert that only PackageManager can make
modifications to /data/app. However, I first need to remove
some existing permissions that seem like they are no longer
used (as per jtinker@). Add audit statements to confirm.

Test: build
Change-Id: Ie5ec5199f7e2f862c4d16d8c86b9b0db6fbe481c
1 file changed