kernel: fix mis-use of sys_dlist_t vs sys_dnode_t in _timeout

Not a functional bug per-se since they resolve to the same thing, but a
conceptual error nonetheless.

Change-Id: Ia11f6bd272cabe8da21d59e3378b8348f034e814
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
1 file changed