FP3: Add missing Widevine DRM dependencies

The widevine service binary requires the legacy DRM HIDL libraries to function, but they are missing from the vendor image.

This fixes the following linker error on boot:
  linker  : CANNOT LINK EXECUTABLE "/vendor/bin/hw/android.hardware.drm@1.3-service.widevine": library "android.hardware.drm@1.0.so" not found: needed by main executable

Change-Id: I0ed424e36665e0baa53ee7439f12efec8e3dd806