Add .gitupstream file

Change-Id: I69db460e7405cecc9406b0bd15ab0a949b6b6295
diff --git a/.gitupstream b/.gitupstream
new file mode 100644
index 0000000..7ae4815
--- /dev/null
+++ b/.gitupstream
@@ -0,0 +1 @@
+https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/agm