net/ixgbe: fix not supporting NULL TM profile
net/ixgbe: fix not supporting NULL TM profile

It's by design that APP can add a TM node without shaper
profile. But ixgbe doesn't support it currently.

Fixes: e0ff4d304ccf ("net/ixgbe: support adding TM node")
Fixes: 5713ade69776 ("net/ixgbe: support committing TM hierarchy")
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