[TF] Add timeout before check gateway port.

Workaround for PRODX-8489
Related-PROD: PRODX-8489

Change-Id: Ib44a2c9cef582015be4edcaf1041773ad9572d4d
(cherry picked from commit 3d123a005b7e1065d40365b162a30c304f684a56)
(cherry picked from commit d974a24c7c142218ef6d92b0ad506fc882d9c0b8)
1 file changed