OPENTHREAD_CONFIG_MLE_ATTACH_BACKOFF_JITTER_INTERVAL macro

@def OPENTHREAD_CONFIG_MLE_ATTACH_BACKOFF_JITTER_INTERVAL Specifies the maximum jitter interval (in milliseconds) used by attach backoff feature. Applicable only if attach backoff feature is enabled (see `OPENTHREAD_CONFIG_MLE_ATTACH_BACKOFF_ENABLE`). Please see `OPENTHREAD_CONFIG_MLE_ATTACH_BACKOFF_ENABLE` description for more details.