drivers/interrupt_controller: Intel VT-D init should happen after ioapic

Or then it will badly crash trying to set up the fault event isr
handler.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
diff --git a/drivers/interrupt_controller/Kconfig.intel_vtd b/drivers/interrupt_controller/Kconfig.intel_vtd
index 12aaba0..b846503 100644
--- a/drivers/interrupt_controller/Kconfig.intel_vtd
+++ b/drivers/interrupt_controller/Kconfig.intel_vtd
@@ -23,7 +23,7 @@
 
 config INTEL_VTD_ICTL_INIT_PRIORITY
 	int "Initialization priority"
-	default 0
+	default 40
 	help
 	  This device should be initialized as soon as possible, before any
 	  other device that would require it for MSI/MSI-X multi-vector support.