drm : Give permission to access drm service api from Oma Drm engine

Uses user defined permission "com.oma.drm.permission.ACCESS_OMA_DRM" to
access protected api call from Oma Drm util framework.

This changes is required for DRM Image support in Android.

CRs-Fixed: 941545

Change-Id: If9b7d079612453f51e3e9e9126dd6553e73b8a5a
1 file changed