The weak signal threshold of CMDA 1xRTT RSSI. The absolute
value of hpnicf3GCdma1xRttRssiMediumThreshold should be less than
or equal to the absolute value of hpnicf3GCdma1xRttRssiWeakThreshold
(|hpnicf3GCdma1xRttRssiMediumThreshold| <= |hpnicf3GCdma1xRttRssiWeakThreshold|).