terraform: closer match to reality

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Change-Id: I75e2d28a6faf53d5024ef7c963e659fda1ad5cb5
diff --git a/ecr.tf b/ecr.tf
index 2141b04..ef959cf 100644
--- a/ecr.tf
+++ b/ecr.tf
@@ -38,14 +38,15 @@
             "Effect": "Allow",
             "Resource": "*",
             "Action": [
-                "ecr:GetDownloadUrlForLayer",
                 "ecr:BatchGetImage",
                 "ecr:BatchCheckLayerAvailability",
+                "ecr:CompleteLayerUpload",
                 "ecr:GetAuthorizationToken",
-                "ecr:PutImage",
+                "ecr:GetDownloadUrlForLayer",
                 "ecr:InitiateLayerUpload",
-                "ecr:UploadLayerPart",
-                "ecr:CompleteLayerUpload"
+                "ecr:ListImages",
+                "ecr:PutImage",
+                "ecr:UploadLayerPart"
             ]
         }
     ]