lttng-tools: upgrade 2.13.11 -> 2.13.13

lttng-tools: upgrade 2.13.11 -> 2.13.13

0001-tests-do-not-strip-a-helper-library.patch
refreshed for 2.13.13

Changelog:
===========
* Fix: consumerd: leak of tracing buffers on relayd connectivity issue
* Fix: consumerd: wrong timer mentioned in error logging
* Fix: consumerd: type confusion in lttng_consumer_send_error
* Fix: baddr-statedump: use $(LIBTOOL) --mode=execute
* Fix: relayd: live client not notified of inactive streams
* Fix: relayd: live: dispose of zombie viewer metadata stream
* tests: Fix typo in tests/regression/kernel/test_ns_contexts
* Fix: sessiond: freeze on channel creation on restart
* common: move utils_create_lock_file to its own file
* tests: tools/clear/test_ust wait for specific test app pid
* Fix: sessiond: crash when sending data_pending to an active session
* Tests: fix: list_triggers_cli: kallsyms contains prefixed symbols
* License: common: error_query: fix typo in SPDX specifier

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>