NAND: Silence warning when CONFIG_SYS_NAND_QUIET_TEST

Commit cfa460adfdefcc30d104e1a9ee44994ee349bb7b removed support
for disabling the "No NAND device found!!!" warning when
CONFIG_SYS_NAND_QUIET_TEST was defined.  This re-adds support
for silencing the warning.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

drivers/mtd/nand/nand_base.c

@@ -2618,7 +2618,9 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips)
 	type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id);
 
 	if (IS_ERR(type)) {
+#ifndef CONFIG_SYS_NAND_QUIET_TEST
 		printk(KERN_WARNING "No NAND device found!!!\n");
+#endif
 		chip->select_chip(mtd, -1);
 		return PTR_ERR(type);
 	}