drm/xe/device: clean up on error in probe()

This error path should clean up before returning.

Smatch detected this bug:
  drivers/gpu/drm/xe/xe_device.c:487 xe_device_probe() warn: missing unwind goto?

Fixes: 4cb12b71 ("drm/xe/xe2: Determine bios enablement for flat ccs on igfx")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>

drivers/gpu/drm/xe/xe_device.c

@@ -495,7 +495,7 @@ int xe_device_probe(struct xe_device *xe)
 
 	err = xe_device_set_has_flat_ccs(xe);
 	if (err)
-		return err;
+		goto err_irq_shutdown;
 
 	err = xe_mmio_probe_vram(xe);
 	if (err)