drm/radeon/dce6: set correct number of audio pins

DCE6.0, 8.x has 6
DCE6.1 has 4

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/dce6_afmt.c

@@ -308,7 +308,9 @@ int dce6_audio_init(struct radeon_device *rdev)
 	rdev->audio.enabled = true;
 
 	if (ASIC_IS_DCE8(rdev))
-		rdev->audio.num_pins = 7;
+		rdev->audio.num_pins = 6;
+	else if (ASIC_IS_DCE61(rdev))
+		rdev->audio.num_pins = 4;
 	else
 		rdev->audio.num_pins = 6;