sepolicy: Correctly label display.qservice per SoC

* msm8952/msm8976/msm8992/msm8994 use it as vndservice
* apq8084/msm8226/msm8909/msm8916/msm8960/msm8974 use it as service

Change-Id: Ia600a777afa0ad164e31d52bcb3a644c52c22450
22 files changed