mako: add service related to widevine

- add qseecomd service
- change mode and owner of qseecom

Change-Id: I7914fc41368e6c8c5708d7fdaa2178716db05c15
diff --git a/ueventd.mako.rc b/ueventd.mako.rc
index f9f5297..cc4c5a8 100644
--- a/ueventd.mako.rc
+++ b/ueventd.mako.rc
@@ -34,3 +34,4 @@
 /dev/gemini*              0660   system     camera
 /dev/msm_dsps             0600   system     system
 /dev/bcm2079x-i2c         0660   nfc        nfc
+/dev/qseecom              0666   system     drmrpc