iommu/vt-d: Convert IR set_affinity function to remap_ops

The function to set interrupt affinity with interrupt
remapping enabled is Intel specific too. So move it to the
irq_remap_ops too.

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/include/asm/intr_remapping.h b/arch/x86/include/asm/intr_remapping.h
index a22e1f1..ae933ec 100644
--- a/arch/x86/include/asm/intr_remapping.h
+++ b/arch/x86/include/asm/intr_remapping.h
@@ -40,6 +40,9 @@
 				   struct IO_APIC_route_entry *entry,
 				   unsigned int destination, int vector,
 				   struct io_apic_irq_attr *attr);
+extern int intr_set_affinity(struct irq_data *data,
+			     const struct cpumask *mask,
+			     bool force);
 
 #else  /* CONFIG_IRQ_REMAP */
 
@@ -59,6 +62,12 @@
 {
 	return -ENODEV;
 }
+static inline int intr_set_affinity(struct irq_data *data,
+				    const struct cpumask *mask,
+				    bool force)
+{
+	return 0;
+}
 #endif /* CONFIG_IRQ_REMAP */
 
 #endif /* __X86_INTR_REMAPPING_H */