These are two separate nets. One is for processor (RZQ) and another one is for memory (DMC0_RZQ).
34 Ω is recommended value for processor. So, we must add 34 Ω external pull-down resistor on DMC0_RZQ line.
Likewise, 240 Ω ± 1% is a recommended value for memory for RZQ. Hence, we need to add 240 Ω external pull-down resistor on ZQ pin of DDR3.