Fix printf() format issues with sizeof_t types by using %zu

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/common/lcd.c b/common/lcd.c
index ebf377a..04ef4e3 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -539,7 +539,7 @@
 
 	debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 		BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
-		sizeof(bmp_logo_palette)/(sizeof(ushort)));
+		(int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 
 	bmap = &bmp_logo_bitmap[0];
 	fb   = (uchar *)(lcd_base + y * lcd_line_length + x);