[IA64] increase limit on #pages to isolate for MCA errors

The fixed sized array of pages that are isolated because of 2xECC
memory errors can run out.  Increasing the size of the array is a
band-aid measure, the real fix will require changes to generic code
to add some bits to page_flags so that pages with errors can be
marked so as to prevent them ever being examined.
Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/mca_drv.c

@@ -52,7 +52,7 @@ typedef enum {
 	MCA_IS_GLOBAL = 1
 } mca_type_t;
 
-#define MAX_PAGE_ISOLATE 32
+#define MAX_PAGE_ISOLATE 1024
 
 static struct page *page_isolate[MAX_PAGE_ISOLATE];
 static int num_page_isolate = 0;