[IA64-SGI] Make number of TIO nodes configurable

Make the limit for the number of TIO nodes a function of the number
of C/M nodes in the system instead of a hardcoded constant.  The
number of TIO nodes should be the same as the number of C/M nodes.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

include/asm-ia64/sn/arch.h

@@ -31,7 +31,8 @@
  * 	to ACPI3.0, this limit will be removed. The notion of "compact nodes"
  * 	should be deleted and TIOs should be included in MAX_NUMNODES.
  */
-#define MAX_COMPACT_NODES	512
+#define MAX_TIO_NODES		MAX_NUMNODES
+#define MAX_COMPACT_NODES	(MAX_NUMNODES + MAX_TIO_NODES)
 
 /*
  * Maximum number of nodes in all partitions and in all coherency domains.