validation: tm: fix arm compilation
validation: tm: fix arm compilation

traffic_mngr.c: In function 'test_shaper_bw':
traffic_mngr.c:1635:5: error: format '%lu' expects
	argument of type 'long unsigned int', but
	argument 3 has type 'uint64_t' [-Werror=format=]
     expected_rcv_gap_us, min_rcv_gap, max_rcv_gap);

Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

nmorey/odp,ravineet-singh/odp,ravineet-singh/odp,erachmi/odp,dkrot/odp,mike-holmes-linaro/odp,ravineet-singh/odp,mike-holmes-linaro/odp,dkrot/odp,nmorey/odp,dkrot/odp,mike-holmes-linaro/odp,erachmi/odp,nmorey/odp,erachmi/odp,nmorey/odp,erachmi/odp,dkrot/odp,mike-holmes-linaro/odp,ravineet-singh/odp