drm/amdgpu: update Fiji's rev id

Change-Id: I0018e2b72feb771683c57960ba3ce942bec5d3ab
Signed-off-by: Flora Cui <[e-mail]>
Reviewed-by: Jammy Zhou <[e-mail]>

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

···
 		adev->external_rev_id = 0x1;
 		break;
 	case CHIP_FIJI:
+		adev->has_uvd = true;
+		adev->cg_flags = 0;
+		adev->pg_flags = 0;
+		adev->external_rev_id = adev->rev_id + 0x3c;
+		break;
 	case CHIP_TONGA:
 		adev->has_uvd = true;
 		adev->cg_flags = 0;