zenfone6: add display-commonsys-intf to dependencies

Change-Id: Iec9512165c69d7f3a1830226cbd97d9d100054ba
diff --git a/omni.dependencies b/omni.dependencies
index f697b08..09aa50e 100644
--- a/omni.dependencies
+++ b/omni.dependencies
@@ -31,6 +31,12 @@
     "revision": "android-9.0"
   },
   {
+    "remote": "omnirom",
+    "repository": "android_vendor_qcom_opensource_display-commonsys-intf",
+    "target_path": "vendor/qcom/opensource/display-commonsys-intf",
+    "revision": "android-9.0"
+  },
+  {
      "remote": "omnirom",
      "repository": "android_vendor_qcom_opensource_fm-commonsys",
      "target_path": "vendor/qcom/opensource/fm-commonsys",