Adding sleep after port creation

The sleep is added to avoid the situation when a port is not
in active yet but static route is added.

Related-PRODX: PRODX-5031
Change-Id: I147e29cc762879418ff3447b428ad6db0771cf7f
(cherry picked from commit 3f00cf4443fc40e77b3897c121326328ec30143a)
(cherry picked from commit 9bb27d4f0f03e2a7a6817187ebd99503723ddd4b)
1 file changed