Fix the removal of Mbed-added core flags in uvision exporter

Author: bridadan

tools/export/uvision/__init__.py

@@ -247,7 +247,7 @@ def generate(self):
             sct_path, dirname(sct_name))
         if ctx['linker_script'] != sct_path:
             self.generated_files.append(ctx['linker_script'])
-        ctx['cputype'] = ctx['device'].core.rstrip("FD").replace("-NS", "")
+        ctx['cputype'] = ctx['device'].core.replace("-NS", "").rstrip("FDE")
         if ctx['device'].core.endswith("FD"):
             ctx['fpu_setting'] = 3
         elif ctx['device'].core.endswith("F"):