move ENABLE_CHANGE_OSD_RESOLUTION to scale2Res() function

Origin commit data
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Commit: 43dbfed1ba
Author: vanhofen <vanhofen@gmx.de>
Date: 2017-02-19 (Sun, 19 Feb 2017)

Origin message was:
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- move ENABLE_CHANGE_OSD_RESOLUTION to scale2Res() function

src/driver/fb_accel_cs_hd2.cpp

@@ -297,8 +297,10 @@ int CFbAccelCSHD2::scale2Res(int size)
 	   So let's scale these values to other resolutions.
 	*/
 
+#ifdef ENABLE_CHANGE_OSD_RESOLUTION
 	if (screeninfo.xres == 1920)
 		size += size/2;
+#endif
 
 	return size;
 }