[TF] Add timeout before check gateway port.

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

Change-Id: Ib44a2c9cef582015be4edcaf1041773ad9572d4d
(cherry picked from commit c3bd944ef64af5d66233b7bcb0983377844d24b0)
1 file changed