[MTD] NAND simplify nand_chip_select

nCE setting can be done when the first command is issued to the device.
We keep the deselect functionality as it makes sense to deassert nCE
when the device becomes idle.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

drivers/mtd/nand/nand_base.c

@@ -174,8 +174,6 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
 		chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
 		break;
 	case 0:
-		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
-			       NAND_NCE | NAND_CTRL_CHANGE);
 		break;
 
 	default: