misc:  Add a .gitreview file for better gerrit integration

Change-Id: I8ca4afacb54f7b88b984b16249d65ee97c05eb6e
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..d7ac047
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.rockbox.org
+port=29418
+project=rockbox.git
+defaultbranch=master