drm/amdgpu: disable some gfx light sleep

temporarily disable to avoid s3 test failure.

s3 test failure log:
"[drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout,
signaled seq=8278, emitted seq=8281"
Reviewed-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/nv.c

@@ -492,10 +492,6 @@ static int nv_common_early_init(void *handle)
 	switch (adev->asic_type) {
 	case CHIP_NAVI10:
 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
-			AMD_CG_SUPPORT_GFX_MGLS |
-			AMD_CG_SUPPORT_GFX_RLC_LS |
-			AMD_CG_SUPPORT_GFX_CP_LS |
-			AMD_CG_SUPPORT_GFX_CGLS |
 			AMD_CG_SUPPORT_GFX_CGCG |
 			AMD_CG_SUPPORT_IH_CG |
 			AMD_CG_SUPPORT_HDP_MGCG |