drm/amdgpu: add me/ce/pfp_feature_version interface query

Provide this information to usermode drivers.  We were previously
missing this info.

Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1895de4..04b9152 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -2279,6 +2279,9 @@
 	adev->gfx.pfp_fw_version = le32_to_cpu(pfp_hdr->header.ucode_version);
 	adev->gfx.ce_fw_version = le32_to_cpu(ce_hdr->header.ucode_version);
 	adev->gfx.me_fw_version = le32_to_cpu(me_hdr->header.ucode_version);
+	adev->gfx.me_feature_version = le32_to_cpu(me_hdr->ucode_feature_version);
+	adev->gfx.ce_feature_version = le32_to_cpu(ce_hdr->ucode_feature_version);
+	adev->gfx.pfp_feature_version = le32_to_cpu(pfp_hdr->ucode_feature_version);
 
 	gfx_v8_0_cp_gfx_enable(adev, false);