Fix uninitialized variables in ide controller
Fix uninitialized variables in ide controller

dev/ide_ctrl.cc:
    Initialize variables to zero to avoid uninitialized usage.

--HG--
extra : convert_revision : 98fd0bfc2b7530938c6ab3a55345d0e594098238

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