Make max reconnect interval the true max.
Make max reconnect interval the true max.

Signed-off-by: Bryce Reitano <b540d2a3d1dcf45499eeee6657922e60829337fa@gmail.com>

choonkeat/paho.mqtt.golang,choonkeat/paho.mqtt.golang,choonkeat/paho.mqtt.golang