[Buildroot] [PATCH] package/mosquitto: bump version to 1.5.8

[Peter Korsgaard]

>>>>> "Peter" == Peter Korsgaard <peter at korsgaard.com> writes:

 > Bugfix release, fixing a number of issues discovered post-1.5.7
 > https://mosquitto.org/blog/2019/02/version-1-5-8-released/

 > Signed-off-by: Peter Korsgaard <peter at korsgaard.com>

Committed to 2018.02.x, 2018.11.x and 2019.02.x, thanks.

-- 
Bye, Peter Korsgaard