test/thash: replace license text with SPDX tag
test/thash: replace license text with SPDX tag

Signed-off-by: Vladimir Medvedkin <fff12e0ae41b6265d4ca22f17aa61c25b70626cc@gmail.com>
Acked-by: Hemant Agrawal <90d96ef1ecd8ed49b97c7897be950e80824a9c5c@nxp.com>

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