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/kexec.h b/arch/ia64/include/asm/kexec.h
index e1d58f81..aea2b81 100644
--- a/arch/ia64/include/asm/kexec.h
+++ b/arch/ia64/include/asm/kexec.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_IA64_KEXEC_H
 #define _ASM_IA64_KEXEC_H
 
+#include <asm/setup.h>
 
 /* Maximum physical address we can use pages from */
 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)