net/bnxt: skip wait for link up on port start

net/bnxt: skip wait for link up on port start

Invoking bnxt_link_update_op() with wait_for_completion set would
result in the driver waiting for 10s in case the port link is down to
complete port initialization (dev_start_op()).
Change it by not waiting for the completion when invoking it in
dev_start_op()

Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>