Attn: Provide default TI info for hypervisor TI

If TI info is not available for some reason we provide default TI info
data so that we can be consistent in our error logging.

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: Ia7768a850400e96904f8bba2a9f9335bef4098be
diff --git a/attn/attn_handler.cpp b/attn/attn_handler.cpp
index 93554fe..34de90d 100644
--- a/attn/attn_handler.cpp
+++ b/attn/attn_handler.cpp
@@ -256,6 +256,7 @@
                 if (tiInfo == nullptr)
                 {
                     trace<level::INFO>("TI info data ptr is null after call");
+                    tiInfo = (uint8_t*)defaultPhypTiInfo;
                 }
             }
         }