io_uring/rsrc: free io_rsrc_node using kfree()

io_rsrc_node_alloc() calls io_cache_alloc(), which uses kmalloc() to
allocate the node. So it can be freed with kfree() instead of kvfree().

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-2-csander@purestorage.com


Signed-off-by: Jens Axboe <axboe@kernel.dk>