gr hal load_ctxsw_ucode changed for dgpu vdk. This helps to avoid any pmu related code access. JIRA NVGPU-1564 Change-Id: I8026ab88c8a8efba6cb1ee45f9ad5371ee08b1af Signed-off-by: Vinod G <vinodg@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1974091 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>