[hm] Fix not able to disable alarm by pressing device button
[hm] Fix not able to disable alarm by pressing device button

Thanks Kiaikai B for reporting

CapnBry/HeaterMeter,shmick/HeaterMeter,shmick/HeaterMeter,CapnBry/HeaterMeter,CapnBry/HeaterMeter,shmick/HeaterMeter,shmick/HeaterMeter,CapnBry/HeaterMeter,shmick/HeaterMeter,CapnBry/HeaterMeter,CapnBry/HeaterMeter,CapnBry/HeaterMeter,shmick/HeaterMeter,shmick/HeaterMeter