Use enum instead of numbers, this fixes the control mapping on linux

Fix case of keys


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@686 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_PadSimple/Src/XInputBase.cpp

@@ -123,6 +123,6 @@ void XKeyToString(unsigned int keycode, char *keyStr) {
     sprintf(keyStr, "LControl");
     break;
   default:
-    sprintf(keyStr, "%c", keycode);
+    sprintf(keyStr, "%c", toupper(keycode));
   }
 }