package/paho-mqtt-c: bump to version 1.3.5

This is a paho-mqtt-c maintainace release. It fixes some memory leaks as
well as a potential deadlock:

https://github.com/eclipse/paho.mqtt.c/milestone/8?closed=1

Signed-off-by: Julien Grossholtz <julien.grossholtz@openest.io>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/paho-mqtt-c/paho-mqtt-c.hash

@@ -1,5 +1,5 @@
 # Locally computed:
-sha256  1ae9b657b693254ed0710350df3dcf5232d1f479409a52861b5e5bb5cc3da046  paho-mqtt-c-1.3.4.tar.gz
+sha256  996eef9e498519da79108f58a887a34abc50cd76770b19b0300b27783706c71f  paho-mqtt-c-1.3.5.tar.gz
 sha256  83bbba033dc985487e321b6dfde111772affb73460be48726299fed3da684b1c  edl-v10
 sha256  0becf16567beb77fa252b7664631dd177c8f9a1889e48995b45379c7130e5303  epl-v20
 sha256  99d3a5c5cc2812f0593a85ec7c1b6dd83e8477b5090c01d9de0d49d49f367a4a  LICENSE

package/paho-mqtt-c/paho-mqtt-c.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PAHO_MQTT_C_VERSION = 1.3.4
+PAHO_MQTT_C_VERSION = 1.3.5
 PAHO_MQTT_C_SITE = $(call github,eclipse,paho.mqtt.c,v$(PAHO_MQTT_C_VERSION))
 PAHO_MQTT_C_LICENSE = EPL-2.0 or BSD-3-Clause
 PAHO_MQTT_C_LICENSE_FILES = epl-v20 edl-v10 LICENSE