make X509 certificate doc link be always available

dao/src/main/java/org/thingsboard/server/dao/device/DeviceServiceImpl.java

@@ -755,7 +755,7 @@ public class DeviceServiceImpl extends AbstractCachedEntityService<DeviceCacheKe
     }
 
     private String getMqttPublishCommand(String protocol, String defaultHostname, String deviceTelemetryTopic, DeviceCredentials deviceCredentials, String payload) {
-        if (deviceCredentials.getCredentialsType() == DeviceCredentialsType.X509_CERTIFICATE) {
+        if (MQTTS.equals(protocol) && deviceCredentials.getCredentialsType() == DeviceCredentialsType.X509_CERTIFICATE) {
             return CHECK_DOCUMENTATION;
         }
         DeviceConnectivityInfo properties = deviceConnectivityConfiguration.getConnectivity().get(protocol);
@@ -768,7 +768,7 @@ public class DeviceServiceImpl extends AbstractCachedEntityService<DeviceCacheKe
     }
 
     private String getCoapPublishCommand(String protocol, String defaultHostname, DeviceCredentials deviceCredentials) {
-        if (deviceCredentials.getCredentialsType() == DeviceCredentialsType.X509_CERTIFICATE) {
+        if (COAPS.equals(protocol) && deviceCredentials.getCredentialsType() == DeviceCredentialsType.X509_CERTIFICATE) {
             return CHECK_DOCUMENTATION;
         }
         DeviceConnectivityInfo properties = deviceConnectivityConfiguration.getConnectivity().get(protocol);