GDISP fix bug in non-multithread

include/gdisp/gdisp.h

@@ -572,7 +572,6 @@ extern "C" {
 	#include "gdisp/lld/gdisp_lld.h"
 
 	/* The same as above but use the low level driver directly if no multi-thread support is needed */
-	#define _gdispInit(gdisp)									gdisp_lld_init()
 	#define gdispIsBusy()										FALSE
 	#define gdispClear(color)									gdisp_lld_clear(color)
 	#define gdispDrawPixel(x, y, color)							gdisp_lld_draw_pixel(x, y, color)

src/gdisp/gdisp.c

@@ -135,6 +135,10 @@
 		gdisp_lld_init();
 		gfxMutexExit(&gdispMutex);
 	}
+#else
+	void _gdispInit(void) {
+		gdisp_lld_init();
+	}
 #endif
 
 #if GDISP_NEED_MULTITHREAD