cpu: Ensure the traffic generator suppresses non-memory packets
cpu: Ensure the traffic generator suppresses non-memory packets

This patch adds a check to ensure that packets which are not going to
a memory range are suppressed in the traffic generator. Thus, if a
trace is collected in full-system, the packets destined for devices
are not played back.

gem5/gem5,zlfben/gem5,KuroeKurose/gem5,austinharris/gem5-riscv,gedare/gem5,zlfben/gem5,briancoutinho0905/2dsampling,kaiyuanl/gem5,rjschof/gem5,powerjg/gem5-ci-test,qizenguf/MLC-STT,cancro7/gem5,HwisooSo/gemV-update,powerjg/gem5-ci-test,rallylee/gem5,Weil0ng/gem5,SanchayanMaity/gem5,rallylee/gem5,KuroeKurose/gem5,gem5/gem5,markoshorro/gem5,kaiyuanl/gem5,KuroeKurose/gem5,SanchayanMaity/gem5,austinharris/gem5-riscv,briancoutinho0905/2dsampling,aclifton/cpeg853-gem5,austinharris/gem5-riscv,gedare/gem5,aclifton/cpeg853-gem5,sobercoder/gem5,cancro7/gem5,KuroeKurose/gem5,gedare/gem5,rjschof/gem5,markoshorro/gem5,austinharris/gem5-riscv,sobercoder/gem5,markoshorro/gem5,TUD-OS/gem5-dtu,cancro7/gem5,zlfben/gem5,gedare/gem5,qizenguf/MLC-STT,zlfben/gem5,zlfben/gem5,aclifton/cpeg853-gem5,qizenguf/MLC-STT,Weil0ng/gem5,markoshorro/gem5,Weil0ng/gem5,markoshorro/gem5,Weil0ng/gem5,gedare/gem5,aclifton/cpeg853-gem5,kaiyuanl/gem5,aclifton/cpeg853-gem5,rallylee/gem5,rjschof/gem5,gem5/gem5,rjschof/gem5,gedare/gem5,TUD-OS/gem5-dtu,kaiyuanl/gem5,KuroeKurose/gem5,gem5/gem5,sobercoder/gem5,markoshorro/gem5,briancoutinho0905/2dsampling,HwisooSo/gemV-update,qizenguf/MLC-STT,kaiyuanl/gem5,SanchayanMaity/gem5,markoshorro/gem5,aclifton/cpeg853-gem5,KuroeKurose/gem5,gem5/gem5,kaiyuanl/gem5,briancoutinho0905/2dsampling,TUD-OS/gem5-dtu,rallylee/gem5,zlfben/gem5,powerjg/gem5-ci-test,briancoutinho0905/2dsampling,TUD-OS/gem5-dtu,cancro7/gem5,aclifton/cpeg853-gem5,sobercoder/gem5,sobercoder/gem5,gem5/gem5,rjschof/gem5,HwisooSo/gemV-update,qizenguf/MLC-STT,austinharris/gem5-riscv,TUD-OS/gem5-dtu,SanchayanMaity/gem5,briancoutinho0905/2dsampling,TUD-OS/gem5-dtu,gedare/gem5,kaiyuanl/gem5,rjschof/gem5,austinharris/gem5-riscv,qizenguf/MLC-STT,rallylee/gem5,sobercoder/gem5,Weil0ng/gem5,rjschof/gem5,SanchayanMaity/gem5,powerjg/gem5-ci-test,SanchayanMaity/gem5,powerjg/gem5-ci-test,TUD-OS/gem5-dtu,austinharris/gem5-riscv,cancro7/gem5,HwisooSo/gemV-update,zlfben/gem5,briancoutinho0905/2dsampling,powerjg/gem5-ci-test,qizenguf/MLC-STT,SanchayanMaity/gem5,rallylee/gem5,HwisooSo/gemV-update,Weil0ng/gem5,Weil0ng/gem5,sobercoder/gem5,powerjg/gem5-ci-test,cancro7/gem5,HwisooSo/gemV-update,cancro7/gem5,KuroeKurose/gem5,HwisooSo/gemV-update,rallylee/gem5,gem5/gem5