Try to improve LCD driver.

board/board_ILI9341.h

@@ -123,7 +123,8 @@ static GFXINLINE void write_index(GDisplay *g, gU16 index) {
 
 static GFXINLINE void write_data(GDisplay *g, gU16 data) {
   (void) g;
-  GDISP_RAM = (data | (data<<8));
+  //GDISP_RAM = (data | (data<<8));
+  GDISP_RAM = data;
 }
 
 static GFXINLINE void setreadmode(GDisplay *g) {