kvm: Disabled the setting reboot.host.and.alert.management.on.heartbeat.timeout by default (#10111)

`reboot.host.and.alert.management.on.heartbeat.timeout` has to be
disabled. Even the high availability isn't enabled when there is an
issue with a storage CloudStack will reboot the host

Author: slavkap

agent/conf/agent.properties

@@ -316,7 +316,7 @@ iscsi.session.cleanup.enabled=false
 #vm.migrate.domain.retrieve.timeout=10
 
 # This parameter specifies if the host must be rebooted when something goes wrong with the heartbeat.
-#reboot.host.and.alert.management.on.heartbeat.timeout=true
+#reboot.host.and.alert.management.on.heartbeat.timeout=false
 
 # Enables manually setting CPU's topology on KVM's VM.
 #enable.manually.setting.cpu.topology.on.kvm.vm=true

agent/src/main/java/com/cloud/agent/properties/AgentProperties.java

@@ -616,10 +616,10 @@ public class AgentProperties{
     /**
      * This parameter specifies if the host must be rebooted when something goes wrong with the heartbeat.<br>
      * Data type: Boolean.<br>
-     * Default value: <code>true</code>
+     * Default value: <code>false</code>
      */
     public static final Property<Boolean> REBOOT_HOST_AND_ALERT_MANAGEMENT_ON_HEARTBEAT_TIMEOUT
-        = new Property<>("reboot.host.and.alert.management.on.heartbeat.timeout", true);
+        = new Property<>("reboot.host.and.alert.management.on.heartbeat.timeout", false);
 
     /**
      * Enables manually setting CPU's topology on KVM's VM. <br>