drm/amdgpu: typo fix for vega20 cg flags

The AMD_CG_SUPPORT_HDP_LS was wrongly written as
AMD_CG_SUPPORT_BIF_LS.
Signed-off-by: NEvan Quan <evan.quan@amd.com>
Reviewed-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/soc15.c

@@ -685,6 +685,7 @@ static int soc15_common_early_init(void *handle)
 			AMD_CG_SUPPORT_BIF_MGCG |
 			AMD_CG_SUPPORT_BIF_LS |
 			AMD_CG_SUPPORT_HDP_MGCG |
+			AMD_CG_SUPPORT_HDP_LS |
 			AMD_CG_SUPPORT_ROM_MGCG |
 			AMD_CG_SUPPORT_VCE_MGCG |
 			AMD_CG_SUPPORT_UVD_MGCG;