drm/xe: Fix build without CONFIG_PM_SLEEP

Build without CONFIG_PM_SLEEP (such as for riscv) was failing due
to unused xe_pci_runtime_* functions.
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_pci.c

@@ -702,7 +702,6 @@ static int xe_pci_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static int xe_pci_runtime_suspend(struct device *dev)
 {
@@ -765,6 +764,7 @@ static int xe_pci_runtime_idle(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static const struct dev_pm_ops xe_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(xe_pci_suspend, xe_pci_resume)