[IA64] Fix annoying IA64_TR_ALLOC_MAX message.

Madison cpus support 64 TR registers.  Increase IA64_TR_ALLOC_MAX
to 64.  Also fixup the messages that get printed when this limit
is exceeded.  Repeating for every cpu is too noisy.

Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 8caf424..bd9818a 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -362,9 +362,13 @@
 		per_cpu(ia64_tr_num, cpu) =
 				vm_info_1.pal_vm_info_1_s.max_dtr_entry+1;
 	if (per_cpu(ia64_tr_num, cpu) > IA64_TR_ALLOC_MAX) {
+		static int justonce = 1;
 		per_cpu(ia64_tr_num, cpu) = IA64_TR_ALLOC_MAX;
-		printk(KERN_DEBUG "TR register number exceeds IA64_TR_ALLOC_MAX!"
-			"IA64_TR_ALLOC_MAX should be extended\n");
+		if (justonce) {
+			justonce = 0;
+			printk(KERN_DEBUG "TR register number exceeds "
+			       "IA64_TR_ALLOC_MAX!\n");
+		}
 	}
 }