hw/intc/loongarch_pch: Add kernel irqchip realize function

Function kvm_pic_realize() is added if kvm_irqchip_in_kernel() return true.
It is to notify KVM kernel to create and initialize PCH PCI device in
kernel mode.

Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Message-ID: <20250606063033.2557365-8-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
4 files changed