drm/amdgpu: Switch to use df_v3_6_funcs for vega20 (v2)

v2: fix whitespace (Alex)
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NFeifei Xu <Feifei.Xu@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@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

@@ -51,6 +51,7 @@
 #include "gfxhub_v1_0.h"
 #include "mmhub_v1_0.h"
 #include "df_v1_7.h"
+#include "df_v3_6.h"
 #include "vega10_ih.h"
 #include "sdma_v4_0.h"
 #include "uvd_v7_0.h"
@@ -501,6 +502,9 @@ int soc15_set_ip_blocks(struct amdgpu_device *adev)
 	else
 		adev->nbio_funcs = &nbio_v6_1_funcs;
 
+	if (adev->asic_type == CHIP_VEGA20)
+		adev->df_funcs = &df_v3_6_funcs;
+	else
 		adev->df_funcs = &df_v1_7_funcs;
 	adev->nbio_funcs->detect_hw_virt(adev);