drm/amd/amdgpu: add cgls

enable cgls to improve the runtime power efficiency.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1065,6 +1065,7 @@ static int nv_common_early_init(void *handle)
 	case CHIP_SIENNA_CICHLID:
 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
 			AMD_CG_SUPPORT_GFX_CGCG |
+			AMD_CG_SUPPORT_GFX_CGLS |
 			AMD_CG_SUPPORT_GFX_3D_CGCG |
 			AMD_CG_SUPPORT_MC_MGCG |
 			AMD_CG_SUPPORT_VCN_MGCG |
@@ -1088,6 +1089,7 @@ static int nv_common_early_init(void *handle)
 	case CHIP_NAVY_FLOUNDER:
 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
 			AMD_CG_SUPPORT_GFX_CGCG |
+			AMD_CG_SUPPORT_GFX_CGLS |
 			AMD_CG_SUPPORT_GFX_3D_CGCG |
 			AMD_CG_SUPPORT_VCN_MGCG |
 			AMD_CG_SUPPORT_JPEG_MGCG |
@@ -1130,6 +1132,7 @@ static int nv_common_early_init(void *handle)
 	case CHIP_DIMGREY_CAVEFISH:
 		adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
 			AMD_CG_SUPPORT_GFX_CGCG |
+			AMD_CG_SUPPORT_GFX_CGLS |
 			AMD_CG_SUPPORT_GFX_3D_CGCG |
 			AMD_CG_SUPPORT_VCN_MGCG |
 			AMD_CG_SUPPORT_JPEG_MGCG |