OPENTHREAD_CONFIG_TMF_SNOOP_CACHE_ENTRY_TIMEOUT macro

@def OPENTHREAD_CONFIG_TMF_SNOOP_CACHE_ENTRY_TIMEOUT The timeout value (in seconds) blocking eviction of an address cache entry created through snoop optimization (i.e., inspection of a received message). After the timeout expires the entry can be reclaimed again. This timeout allows a longer response delay for a received message giving more chance that a snooped entry will be used (avoiding sending Address Query when a response message is sent to same destination from which the message was received earlier).