Stabilize macro ordering in mbed_config.h

Author: theotherjimmy

tools/config/__init__.py

@@ -1124,10 +1124,14 @@ def config_to_header(config, fname=None):
         Config._check_required_parameters(params)
         params_with_values = [p for p in params.values() if p.value is not None]
         ctx = {
-            "cfg_params" : [(p.macro_name, str(p.value), p.set_by)
-                            for p in params_with_values],
-            "macros": [(m.macro_name, str(m.macro_value or ""), m.defined_by)
-                       for m in macros.values()],
+            "cfg_params": sorted([
+                (p.macro_name, str(p.value), p.set_by)
+                for p in params_with_values
+            ]),
+            "macros": sorted([
+                (m.macro_name, str(m.macro_value or ""), m.defined_by)
+                for m in macros.values()
+            ]),
             "name_len":  max([len(m.macro_name) for m in macros.values()] +
                              [len(m.macro_name) for m in params_with_values]
                              + [0]),