mosquitto: Upgrade 1.6.10 -> 1.6.11

Upgrade to release 1.6.11:

Broker:
- Fix usage message only mentioning v3.1.1.
- Fix broker refusing to start if only websockets listeners were
  defined.
- Change systemd unit files to create /var/log/mosquitto before
  starting.
- Don't quit with an error if opening the log file isn't possible.
- Fix bridge topic remapping when using "" as the topic.
- Fix messages being queued for disconnected bridges when clean
  start was set to true.
- Fix `autosave_interval` not being triggered by messages being
  delivered.
- Fix websockets clients sometimes not being disconnected promptly.
- Fix "slow" file based logging by switching to line based
  buffering.
- Log protocol error message where appropriate from a bad
  UNSUBSCRIBE, rather than the generic "socket error".
- Don't try to start DLT logging if DLT unavailable, to avoid a
  long delay when shutting down the broker.
- Fix potential memory leaks.
- Fix clients not receiving messages after a previous client with
  the same client ID and positive will delay interval quit.
- Fix overly broad HAVE_PTHREAD_CANCEL compile guard.

Client library:
- Improved documentation around connect callback return codes.
- Fix `mosquitto_publish*()` no longer returning
  `MOSQ_ERR_NO_CONN` when not connected.
- `mosquitto_loop_start()` now sets a thread name on Linux,
  FreeBSD, NetBSD, and OpenBSD.
- Fix `mosquitto_loop_stop()` not stopping on Windows.

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-connectivity/mosquitto/mosquitto_1.6.11.bb

@@ -20,8 +20,8 @@ SRC_URI = "http://mosquitto.org/files/source/mosquitto-${PV}.tar.gz \
            file://install-protocol.patch \
 "
 
-SRC_URI[md5sum] = "960f963b81b7f93982d7511cd28082e5"
-SRC_URI[sha256sum] = "92d1807717f0f6d57d1ac1207ffdb952e8377e916c7b0bb4718f745239774232"
+SRC_URI[md5sum] = "35925c7ccd1bac87e4201b635ffa66a1"
+SRC_URI[sha256sum] = "b02d8f1368c40d5779ee125c37daf9003608eb47d7fbb04c5b938c76c1230a1f"
 
 inherit systemd update-rc.d useradd cmake