Wrong configuration prefix for the MQTT port and host.

[antonio-pedro99]

So the configs are defined with keys like below

strimzi-mqtt-bridge/config/application.properties

Line 5 in 50f4371

mqtt.server.host=localhost

strimzi-mqtt-bridge/config/application.properties

Line 6 in 50f4371

mqtt.server.port=1883

But in the MqttConfig class, we are not using the exact keys, which is leading the Bridge to use always the default values for both Port and Host.

strimzi-mqtt-bridge/src/main/java/io/strimzi/kafka/bridge/mqtt/config/MqttConfig.java

Line 19 in 50f4371

public static final String MQTT_HOST = MQTT_CONFIG_PREFIX + "host";