net/i40e: fix TM level capability getting
net/i40e: fix TM level capability getting

Only queue nodes should be taken as leaf nodes, all
the other nodes are non-leaf nodes.
Correct it when getting the TM level capability.

Fixes: 0fb1ef1e7930 ("net/i40e: support getting TM level capability")
Cc: stable@dpdk.org

Signed-off-by: Wenzhuo Lu <58cb9036bdff9a5412edc3b9f70e105ccf59954f@intel.com>
Acked-by: Cristian Dumitrescu <25468b8a3698eeb3c368247f8635924bb4a1ce2c@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk