package/mosquitto: bump to v1.6.10
This release fix some bugs in the broker and client libraries,
as well as building with below C99 suport.
Read the whole announcement on:
https://mosquitto.org/blog/2020/05/version-1-6-8-released/
Signed-off-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 466bce9c9b2f369bf4d87321d390951236161baf)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>