Issue: During Tx lane bring up power up will fail if the lane is already powered up. Fix: Don't bring-up Tx lane if its already powered up. Bug 200766119 Bug 200764018 Change-Id: Idbdffdca7b9c9cccd8b8876fcfe8ea7448a7ed10 Signed-off-by: Bhadram Varka <vbhadram@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2597604 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com> Reviewed-by: Narayan Reddy <narayanr@nvidia.com> Reviewed-by: Bitan Biswas <bbiswas@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit