mtd: nand: don't free the global data too early

The global data fsl_lbc_ctrl_dev->nand don't have to be freed in
fsl_elbc_chip_remove(). The right place to do that is in fsl_elbc_nand_remove()
if elbc_fcm_ctrl->counter is zero.
Signed-off-by: Liu Shuo <b35362@freescale.com>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>

drivers/mtd/nand/fsl_elbc_nand.c

@@ -829,7 +829,6 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
 
 	elbc_fcm_ctrl->chips[priv->bank] = NULL;
 	kfree(priv);
-	kfree(elbc_fcm_ctrl);
 	return 0;
 }