prodimage: add gnpug, use pl mirrors

Change-Id: I6245e9b1b127c5db574d58e35b5f3006551d795b
diff --git a/WORKSPACE b/WORKSPACE
index e4ba58a..3124716 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -112,8 +112,8 @@
     name = "prodimage-bionic",
     registry = "registry.k0.hswaw.net",
     repository = "q3k/prodimage",
-    tag = "20190810-1802",
-    digest = "sha256:ed0cbffacdb4bd62c193c753d2b6fb7e02115ce8571b0186ef3e1a12c031be38",
+    tag = "20190814-1915",
+    digest = "sha256:708fdaa7beb76dd2c9d2f3773a202d0f59309a79b59ec40753a729e4e44af588",
 )
 
 container_pull(