inorder: update default thread size(=1)

a lot of structures get allocated based off that MaxThreads parameter so this is an
effort to not abuse it

src/cpu/inorder/pipeline_traits.hh

@@ -51,7 +51,7 @@ class ResourceSked;
 namespace ThePipeline {
     // Pipeline Constants
     const unsigned NumStages = 5;
-    const ThreadID MaxThreads = 8;
+    const ThreadID MaxThreads = 1;
     const unsigned BackEndStartStage = 2;
 
     // List of Resources The Pipeline Uses