s390/uv: Fix comment of uv_find_secret() function

The uv_get_secret_metadata() function has been removed some
months ago, so we should not mention it in the comment anymore.

Fixes: a42831f ("s390/uv: Remove uv_get_secret_metadata function")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

Author: huth

arch/s390/kernel/uv.c

@@ -866,8 +866,8 @@ static int find_secret_in_page(const u8 secret_id[UV_SECRET_ID_LEN],
 	return -ENOENT;
 }
 
-/*
- * Do the actual search for `uv_get_secret_metadata`.
+/**
+ * uv_find_secret() - search secret metadata for a given secret id.
  * @secret_id: search pattern.
  * @list: ephemeral buffer space
  * @secret: output data, containing the secret's metadata.