【22.03 LTS】【loongarch64】openEuler QEMU 不支持 "-netdev user" 参数

【问题描述】
openEuler QEMU 不支持 "-netdev user" 参数, 导致 avocado 测试无法运行。
这是由于qemu编译的时候制定了编译选项 --disable-slirp 导致的， OpenEuler上不支持libslirp

【软件信息】
系统版本：openEuler release 22.03 LTS
qemu版本：QEMU emulator version 6.2.0 (qemu-6.2.0-65.oe2203)

【测试log】
openEuler qemu 6.2.0 
[root@localhost auto-avocado]# /usr/libexec/qemu-kvm -help | grep netdev
-netdev tap,id=str[,fd=h][,fds=x:y:...:z][,ifname=name][,script=file][,downscript=dfile]
-netdev bridge,id=str[,br=bridge][,helper=helper]
-netdev l2tpv3,id=str,src=srcaddr,dst=dstaddr[,srcport=srcport][,dstport=dstport]
-netdev socket,id=str[,fd=h][,listen=[host]:port][,connect=host:port]
-netdev socket,id=str[,fd=h][,mcast=maddr:port[,localaddr=addr]]
-netdev socket,id=str[,fd=h][,udp=host:port][,localaddr=host:port]
-netdev vhost-user,id=str,chardev=dev[,vhostforce=on|off]
-netdev vhost-vdpa,id=str,vhostdev=/path/to/dev
                configure a vhost-vdpa network,Establish a vhost-vdpa netdev
-netdev hubport,id=str,hubid=n[,netdev=nd]
                (use the -netdev option if possible instead)

【期望结果】
-netdev user,id=str[,ipv4[=on|off]][,net=addr[/mask]][,host=addr]
         [,ipv6[=on|off]][,ipv6-net=addr[/int]][,ipv6-host=addr]
         [,restrict=on|off][,hostname=host][,dhcpstart=addr]
         [,tftp=dir][,tftp-server-name=name][,bootfile=f][,hostfwd=rule][,guestfwd=rule][,smb=dir[,smbserver=addr]]
         [,br=bridge][,helper=helper][,sndbuf=nbytes][,vnet_hdr=on|off][,vhost=on|off]
         [,vhostfd=h][,vhostfds=x:y:...:z][,vhostforce=on|off][,queues=n]
                configure a host TAP network backend with ID 'str'
                use vhost=on to enable experimental in kernel accelerator
                use vhostforce=on to force vhost on for non-MSIX virtio guests
                use 'vhostfd=h' to connect to an already opened vhost net device
                use 'vhostfds=x:y:...:z to connect to multiple already opened vhost net devices
                spent on busy polling for vhost net
                configure a host TAP network backend with ID 'str' that is

openEuler/qemu

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