arm, configs: Do not forward snoops from I cache
arm, configs: Do not forward snoops from I cache

This fix simply tells the I cache to not forward snoops to the fetch
unit (since there is really no reason to do so).

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