xkb: Comment out intermixed fixed size fields and lists

xkb: Comment out intermixed fixed size fields and lists

c_client.py doesn't handle such intermixed fixed size fields and lists
correctly. Therefor comment them out.

With that change the size of the generated request structure for
ListComponents has 8 Bytes which is the same as xkbListComponentsReq
has and the server checks REQUEST_AT_LEAST_SIZE(xkbListComponentsReq).
The same goes for GetKbdByName, which results in a structure of 12
Bytes.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-By: Ran Benita <ran234@gmail.com>