O3: Fix offset calculation into storeQueue buffer for store->load forwarding
O3: Fix offset calculation into storeQueue buffer for store->load forwarding

Calculation of offset to copy from storeQueue[idx].data structure for load to
store forwarding fixed to be difference in bytes between store and load virtual
addresses.  Previous method would induce bug where a load would index into
buffer at the wrong location.

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