x86, genapic: rename int_delivery_mode, et. al.

int_delivery_mode is supposed to mean 'interrupt delivery mode', but
it's quite a misnomer as 'int' we usually think of as an integer type ...

The standard naming for such attributes is 'irq' - so rename the following
fields and macros:

 int_delivery_mode => irq_delivery_mode
 INT_DELIVERY_MODE => IRQ_DELIVERY_MODE
 int_dest_mode     => irq_dest_mode
 INT_DEST_MODE     => IRQ_DEST_MODE

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/include/asm/genapic.h b/arch/x86/include/asm/genapic.h
index 108abdf..e998e3d 100644
--- a/arch/x86/include/asm/genapic.h
+++ b/arch/x86/include/asm/genapic.h
@@ -23,8 +23,8 @@
 	int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
 	int (*apic_id_registered)(void);
 
-	u32 int_delivery_mode;
-	u32 int_dest_mode;
+	u32 irq_delivery_mode;
+	u32 irq_dest_mode;
 
 	const struct cpumask *(*target_cpus)(void);