[arch][riscv] fix up the smp reschedule ipi delivery
[arch][riscv] fix up the smp reschedule ipi delivery

hollanderic/lkstuff,travisg/lk,travisg/lk,littlekernel/lk,travisg/lk,hollanderic/lkstuff,hollanderic/lkstuff,travisg/lk,littlekernel/lk,littlekernel/lk,hollanderic/lkstuff,littlekernel/lk