paho-mqtt-c: bump to version 1.2.0

Add a patch fixing compilation on the systems without C++ compiler.

Also add licence hashes.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/paho-mqtt-c/0001-Declare-mqtt-tests-as-a-C-only-project.patch

@@ -0,0 +1,27 @@
+From 6556e62a07972eafccaefdcdf32bd0d386c64ca2 Mon Sep 17 00:00:00 2001
+From: Yegor Yefremov <yegorslists@googlemail.com>
+Date: Wed, 13 Sep 2017 07:59:50 +0200
+Subject: [PATCH] Declare mqtt-tests as a C-only project
+
+This way CMake doesn't break the build on the systems without
+C++ compiler.
+
+Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
+Reported-by: Marcus Hoffmann <m.hoffmann@cartelsol.com>
+---
+ test/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
+index 5c88c44..3aca80f 100644
+--- a/test/CMakeLists.txt
++++ b/test/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-PROJECT(mqtt-tests)
++PROJECT(mqtt-tests C)
+ 
+ IF (WIN32)
+   SET(MQTT_TEST_BROKER "tcp://mqtt.iotree.co.uk:1883" CACHE STRING "Hostname of a test MQTT broker to use")
+-- 
+2.1.4
+

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

@@ -1,2 +1,4 @@
 # Locally computed:
-sha256  970b9621efc24251441d386274cd0a90cf6ad52b64031f3c8cb53fdd5526f5f3  paho-mqtt-c-v1.1.0.tar.gz
+sha256  0cb0396554ebe0e8ac6b0de1cbc16601ef169b6a63baf6f0f3ddeb405f5471a5  paho-mqtt-c-v1.2.0.tar.gz
+sha256  83bbba033dc985487e321b6dfde111772affb73460be48726299fed3da684b1c  edl-v10
+sha256  44277b2bec6093e4ac313afec251a4de599d24c4e768f8574d95b13a9d2d97b5  epl-v10

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

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PAHO_MQTT_C_VERSION = v1.1.0
+PAHO_MQTT_C_VERSION = v1.2.0
 PAHO_MQTT_C_SITE = $(call github,eclipse,paho.mqtt.c,$(PAHO_MQTT_C_VERSION))
 PAHO_MQTT_C_LICENSE = EPL-1.0 or BSD-3-Clause
 PAHO_MQTT_C_LICENSE_FILES = epl-v10 edl-v10