The weak signal threshold of CMDA EvDo RSSI. The absolute
value of hh3c3GCdmaEvDoRssiMediumThreshold should be less than
or equal to the absolute value of hh3c3GCdmaEvDoRssiWeakThreshold
(|hh3c3GCdmaEvDoRssiMediumThreshold| <= |hh3c3GCdmaEvDoRssiWeakThreshold|).