package/mosquitto: security bump to version 1.5.5

>From the release notes:

If per_listener_settings is set to true, then the acl_file setting was
ignored for the "default listener" only.  This has been fixed.  This does
not affect any listeners defined with the listener option.

https://mosquitto.org/blog/2018/12/version-155-released/

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 726be29277933268a5fb564f7d5eaf8a6fe953cf)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mosquitto/mosquitto.hash

@@ -1,5 +1,5 @@
 # Locally calculated after checking gpg signature
-sha256 5fd7f3454fd6d286645d032bc07f44a1c8583cec02ef2422c9eb32e0a89a9b2f  mosquitto-1.5.4.tar.gz
+sha256 fcdb47e340864c545146681af7253399cc292e41775afd76400fda5b0d23d668  mosquitto-1.5.5.tar.gz
 
 # License files
 sha256 cc77e25bafd40637b7084f04086d606f0a200051b61806f97c93405926670bc1  LICENSE.txt

package/mosquitto/mosquitto.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MOSQUITTO_VERSION = 1.5.4
+MOSQUITTO_VERSION = 1.5.5
 MOSQUITTO_SITE = https://mosquitto.org/files/source
 MOSQUITTO_LICENSE = EPL-1.0 or EDLv1.0
 MOSQUITTO_LICENSE_FILES = LICENSE.txt epl-v10 edl-v10