Attn: Remove --defaultbreakpoint add --defaultti

In order to support breakpoint handling and TI handling on systems that
did not support the get TI info interface the --defaultbreakpoint
configuration option was added. This switch is no longer needed and
breakpoint handling is now the default action for available but invalid
TI info data. A new option --defaultti was added to force handling of
TI's when TI info is available but not valid.

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: I4bdf90dcbbf20b3428a1cef6f1a71ec32b3ca238
diff --git a/attn/bp_handler.hpp b/attn/bp_handler.hpp
index 4c7dcb0..0d02bcb 100644
--- a/attn/bp_handler.hpp
+++ b/attn/bp_handler.hpp
@@ -7,7 +7,9 @@
  * @brief Breakpoint special attention handler
  *
  * Handler for special attention events due to a breakpoint condition.
+ *
+ * @return RC_NOT_HANDLED if error, else RC_SUCCESS
  */
-void bpHandler();
+int bpHandler();
 
 } // namespace attn