move gr_gk20a_init_fs_state function to common/gr/init as nvgpu_gr_init_fs_state. JIRA NVGPU-1885 Change-Id: I37aad483be268e2b722883719376beb142c0b7ea Signed-off-by: Vinod G <vinodg@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2072413 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>