config: Add new MemConfig options to DRAM sweep script
config: Add new MemConfig options to DRAM sweep script

Update script to match current MemConfig options with
external_memory_system option set to 0.
(transplanted from 33f1c7b65a887801370e7d3ec0a202ad13c3ed5c)

andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin