src/lib: Fix typo

Change-Id: Ie5bf036a63a254dd95b45a0823086c8079eeafe2
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27913
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/lib/device_tree.c

@@ -751,7 +751,7 @@ uint32_t dt_get_phandle(struct device_tree_node *node)
  * Write an arbitrary sized big-endian integer into a pointer.
  *
  * @param dest		Pointer to the DT property data buffer to write.
- * @param src		The integer to write (in CPU endianess).
+ * @param src		The integer to write (in CPU endianness).
  * @param length	the length of the destination integer in bytes.
  */
 void dt_write_int(u8 *dest, u64 src, size_t length)