drm/amdgpu: Enable DPG support for VCN5

This will set DPG flags for enabling power gating on GFX11_5_4

Signed-off-by: sguttula <suresh.guttula@amd.com>
Reviewed-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit a503c26)

Author: sureshg20

drivers/gpu/drm/amd/amdgpu/soc21.c

@@ -858,7 +858,9 @@ static int soc21_common_early_init(struct amdgpu_ip_block *ip_block)
 			AMD_CG_SUPPORT_IH_CG |
 			AMD_CG_SUPPORT_BIF_MGCG |
 			AMD_CG_SUPPORT_BIF_LS;
-		adev->pg_flags = AMD_PG_SUPPORT_VCN |
+		adev->pg_flags = AMD_PG_SUPPORT_VCN_DPG |
+			AMD_PG_SUPPORT_VCN |
+			AMD_PG_SUPPORT_JPEG_DPG |
 			AMD_PG_SUPPORT_JPEG |
 			AMD_PG_SUPPORT_GFX_PG;
 		adev->external_rev_id = adev->rev_id + 0x1;