Merge pull request #11212 from chrissnow/uVison_opt_level

Change default optimisation level to O1 when exporting to uVision

Author: 0xc0170

tools/export/uvision/uvision.tmpl

@@ -355,7 +355,7 @@
           </ArmAdsMisc>
           <Cads>
             <interw>0</interw>
-            <Optim>1</Optim>
+            <Optim>2</Optim>
             <oTime>0</oTime>
             <SplitLS>0</SplitLS>
             <OneElfS>1</OneElfS>