Adjust macsec mtu setting as osi_core->mtu is not reducing mtu for macsec SECTAG Bug 200730979 Change-Id: I69399b5b9ebd04b5c2c8964bab5b6635f66cfef8 Signed-off-by: Mahesh Patil <maheshp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2558623 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com> Reviewed-by: Bhadram Varka <vbhadram@nvidia.com> Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit