[ncp] disable assert and watchdog property when fuzz testing (#3547)
[ncp] disable assert and watchdog property when fuzz testing (#3547)


lanyuwen/openthread,jwhui/openthread,bukepo/openthread,abtink/openthread,bukepo/openthread,lanyuwen/openthread,librasungirl/openthread,srickardti/openthread,chshu/openthread,lanyuwen/openthread,librasungirl/openthread,chshu/openthread,srickardti/openthread,lanyuwen/openthread,lanyuwen/openthread,srickardti/openthread,jwhui/openthread,abtink/openthread,chshu/openthread,librasungirl/openthread,bukepo/openthread,librasungirl/openthread,openthread/openthread,abtink/openthread,chshu/openthread,bukepo/openthread,chshu/openthread,turon/openthread,srickardti/openthread,jwhui/openthread,abtink/openthread,openthread/openthread,turon/openthread,jwhui/openthread,lanyuwen/openthread,turon/openthread,turon/openthread,chshu/openthread,openthread/openthread,openthread/openthread