ubifs: describe function parameters

With 16a26b20d2afd ("ubifs: authentication: Add hashes to index nodes")
insert_node() and insert_dent() got a new function parameter 'hash'. Add
a description for this new parameter.

Signed-off-by: Sascha Hauer <[e-mail]>
Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Reviewed-by: Zhihao Cheng <[e-mail]>
Signed-off-by: Richard Weinberger <[e-mail]>

fs/ubifs/replay.c

···
  * @lnum: node logical eraseblock number
  * @offs: node offset
  * @len: node length
+ * @hash: node hash
  * @key: node key
  * @sqnum: sequence number
  * @deletion: non-zero if this is a deletion
···
  * @lnum: node logical eraseblock number
  * @offs: node offset
  * @len: node length
+ * @hash: node hash
  * @key: node key
  * @name: directory entry name
  * @nlen: directory entry name length