[PATCH] i386: include linux/irq.h rather than asm/hw_irq.h

I need the following patch to compile -git8 here, otherwise these
files fail to compile (asm/hw_irq.h needs definitions from
linux/irq.h and that file provides the required include ordering).

I did not do a full audit, though there looks to be many other
places that should get the same treatment, if this is  the right
way to do it.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
index 7e7a202..4c4522b 100644
--- a/arch/i386/pci/acpi.c
+++ b/arch/i386/pci/acpi.c
@@ -1,7 +1,7 @@
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/init.h>
-#include <asm/hw_irq.h>
+#include <linux/irq.h>
 #include <asm/numa.h>
 #include "pci.h"