Disintegrate asm/system.h for IA64

Disintegrate asm/system.h for IA64.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
cc: linux-ia64@vger.kernel.org
diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h
index f82d6be..2b68d85 100644
--- a/arch/ia64/include/asm/irqflags.h
+++ b/arch/ia64/include/asm/irqflags.h
@@ -10,6 +10,8 @@
 #ifndef _ASM_IA64_IRQFLAGS_H
 #define _ASM_IA64_IRQFLAGS_H
 
+#include <asm/pal.h>
+
 #ifdef CONFIG_IA64_DEBUG_IRQ
 extern unsigned long last_cli_ip;
 static inline void arch_maybe_save_ip(unsigned long flags)