devtools: add git check exception for OCTEON TX
devtools: add git check exception for OCTEON TX

The 'TX' in OCTEON TX would cause a warning.
Adding an exception for that.

OCTEON TX is a registered product under Cavium

Signed-off-by: Anoob Joseph <854cf518c6746dae2d952dd5f30e699f0b28a022@caviumnetworks.com>

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