mtd: spi-nor: hisi-sfc: fix refcounting bug in hisi_spi_nor_register_all()

This was converted to a _scoped() loop but this of_node_put() was
accidentally left behind which is a double free.

Fixes: aa8cb72 ("mtd: spi-nor: hisi-sfc: Simplify with scoped for each OF child loop")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: Dan Carpenter

drivers/mtd/spi-nor/controllers/hisi-sfc.c

@@ -403,7 +403,6 @@ static int hisi_spi_nor_register_all(struct hifmc_host *host)
 
 		if (host->num_chip == HIFMC_MAX_CHIP_NUM) {
 			dev_warn(dev, "Flash device number exceeds the maximum chipselect number\n");
-			of_node_put(np);
 			break;
 		}
 	}