cmd: mtd: print device OF path in listing

Print MTD's device OF path in the output of `mtd list` command.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Cc: Priyanka Jain <priyanka.jain@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/cmd/mtd.c b/cmd/mtd.c
index 485a963..2aabfd4 100644
--- a/cmd/mtd.c
+++ b/cmd/mtd.c
@@ -126,6 +126,13 @@
 		printf("  - driver: %s\n", mtd->dev->driver->name);
 	}
 #endif
+	if (IS_ENABLED(CONFIG_OF_CONTROL) && mtd->dev) {
+		char buf[256];
+		int res;
+
+		res = ofnode_get_path(mtd_get_ofnode(mtd), buf, 256);
+		printf("  - path: %s\n", res == 0 ? buf : "unavailable");
+	}
 
 	/* MTD device information */
 	printf("  - type: ");