OPENTHREAD_CONFIG_SRP_CLIENT_EARLY_LEASE_RENEW_FACTOR_NUMERATOR macro

@def OPENTHREAD_CONFIG_SRP_CLIENT_EARLY_LEASE_RENEW_FACTOR_NUMERATOR Specifies the numerator of early lease renewal factor. This value is used for opportunistic early refresh behave. When sending an SRP update, the services that are not yet expired but are close, are allowed to refresh early and are included in the SRP update. The "early lease renewal interval" is used to determine if a service can renew early. The interval is calculated by multiplying the accepted lease interval by the "early lease renewal factor" which is given as a fraction (numerator and denominator). If the factor is set to zero (numerator=0, denominator=1), the opportunistic early refresh behavior is disabled. If denominator is set to zero (the factor is set to infinity), then all services (including previously registered ones) are always included in SRP update message. Default value is 1/2 (i.e., services that are within half of the lease interval are allowed to refresh early).