hw/loongarch/virt: Register reset interface with cpu plug callback

With cpu hotplug is implemented on LoongArch virt machine, reset
interface with hot-added CPU should be registered. Otherwise there
will be problem if system reboots after cpu is hot-added.

Now register reset interface with CPU plug callback, so that all
cold/hot added CPUs let their reset interface registered. And remove
reset interface with CPU unplug callback.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20250906070200.3749326-4-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2 files changed