iommu/vt-d: Convert missing apic.c intr-remapping call to remap_ops

Convert these calls too:

	* Disable of remapping hardware
	* Reenable of remapping hardware
	* Enable fault handling

With that all of arch/x86/kernel/apic/apic.c is converted to
use the generic intr-remapping interface.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 1db6f63..a276268 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1443,7 +1443,7 @@
 	 * handling for interrupt remapping.
 	 */
 	if (intr_remapping_enabled)
-		enable_drhd_fault_handling();
+		intr_enable_fault_handling();
 
 }
 
@@ -2181,7 +2181,7 @@
 	disable_local_APIC();
 
 	if (intr_remapping_enabled)
-		disable_intr_remapping();
+		intr_hardware_disable();
 
 	local_irq_restore(flags);
 	return 0;
@@ -2250,7 +2250,7 @@
 	apic_read(APIC_ESR);
 
 	if (intr_remapping_enabled)
-		reenable_intr_remapping(x2apic_mode);
+		intr_hardware_reenable(x2apic_mode);
 
 	local_irq_restore(flags);
 }