Add .gitupstream file

Change-Id: I7e853b577eb7b444cbadfd396084e44a1e11808b
diff --git a/.gitupstream b/.gitupstream
new file mode 100644
index 0000000..dde8122
--- /dev/null
+++ b/.gitupstream
@@ -0,0 +1 @@
+https://git.codelinaro.org/clo/la/platform/vendor/qcom-opensource/display-commonsys