libfdt: fix typo on comment

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
diff --git a/scripts/dtc/libfdt/libfdt.h b/scripts/dtc/libfdt/libfdt.h
index 5c778b1..c400f2f 100644
--- a/scripts/dtc/libfdt/libfdt.h
+++ b/scripts/dtc/libfdt/libfdt.h
@@ -734,7 +734,7 @@
 /**
  * fdt_get_alias_namelen - get alias based on substring
  * @fdt: pointer to the device tree blob
- * @name: name of the alias th look up
+ * @name: name of the alias to look up
  * @namelen: number of characters of name to consider
  *
  * Identical to fdt_get_alias(), but only examine the first namelen