Add aptly APT repository

Change-Id: I6712547976f89e53015d5bd24808cf75bc008494
diff --git a/linux/system/repo/aptly.yml b/linux/system/repo/aptly.yml
new file mode 100644
index 0000000..330ba03
--- /dev/null
+++ b/linux/system/repo/aptly.yml
@@ -0,0 +1,9 @@
+parameters:
+  linux:
+    system:
+      repo:
+        aptly:
+          source: "deb http://repo.aptly.info/ squeeze main"
+          architectures: amd64
+          key_id: 9E3E53F19C7DE460
+          key_server: keys.gnupg.net