[Detail]
Android has defined neverallow rules
to restrict direct access to system files.
We need to have a custom label for each policy.
[Solution]
Define custom label for drmserver
MTK-Commit-Id: c84c43b87a6ac2651a0562b8818bc66516e4a50b
Change-Id: Ide4fc49628508aee77e67f3213749210430153a3
CR-Id: ALPS02333452
Feature: OMA DRM V1.0