mtd: nand: Update driver to match new DT binding

New binding changed node name from flash@e1000000 to nand-controller@0,0
which should be reflected in the driver. Both names are supported for
backward compatibility.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/61f6edd965e0c0b179184823d5283c6c61a1eb35.1645625433.git.michal.simek@xilinx.com
diff --git a/drivers/mtd/nand/raw/zynq_nand.c b/drivers/mtd/nand/raw/zynq_nand.c
index d792528..10e9cd1 100644
--- a/drivers/mtd/nand/raw/zynq_nand.c
+++ b/drivers/mtd/nand/raw/zynq_nand.c
@@ -1086,10 +1086,13 @@
 	int is_16bit_bw;
 
 	smc->reg = (struct zynq_nand_smc_regs *)dev_read_addr(dev);
-	of_nand = dev_read_subnode(dev, "flash@e1000000");
+	of_nand = dev_read_subnode(dev, "nand-controller@0,0");
 	if (!ofnode_valid(of_nand)) {
-		printf("Failed to find nand node in dt\n");
-		return -ENODEV;
+		of_nand = dev_read_subnode(dev, "flash@e1000000");
+		if (!ofnode_valid(of_nand)) {
+			printf("Failed to find nand node in dt\n");
+			return -ENODEV;
+		}
 	}
 
 	if (!ofnode_is_available(of_nand)) {