Add AnyWithBlock prolog function

Add a prolog function 'AnyWithBlock' that will block a submit on the
lowest possible negative value.  Any other value will enable a submit.

Bug: Issue 2042
Change-Id: I56826db2eb63de9ea7150757240ad916f6e9f8a8
diff --git a/Documentation/config-labels.txt b/Documentation/config-labels.txt
index 1ff7e24..7df55fe 100644
--- a/Documentation/config-labels.txt
+++ b/Documentation/config-labels.txt
@@ -203,6 +203,12 @@
 must be at least one positive value, or else submit will never be
 enabled. To permit blocking submits, ensure a negative value is defined.
 
+* `AnyWithBlock`
++
+The lowest possible negative value, if present, blocks a submit, Any
+other value enables a submit. To permit blocking submits, ensure
+that a negative value is defined.
+
 * `MaxNoBlock`
 +
 The highest possible positive value is required to enable submit, but