Return immediately in save_phys_nics if not run as root Physical nic is not instantiated in lxc_create_network
Return immediately in save_phys_nics if not run as root
Physical nic is not instantiated in lxc_create_network

Signed-off-by: Li Qiu <199a73f02e8d65ec5b30550eb52dad336088f831@nomovok.com>

cjwatson/lxc,ysbnim/lxc,QingweiPeterLan/cs188-lxc,akshaykarle/lxc,terceiro/lxc,ss1h2a3tw/lxc,aeris/lxc,hfuCN/lxc,caglar10ur/lxc,GreatFruitOmsk/lxc,thmo/lxc,QingweiPeterLan/cs188-lxc,tych0/lxc,terceiro/lxc,thmo/lxc,thmo/lxc,armcc/lxc,terceiro/lxc,LynxChaus/lxc,bostjan/lxc,Distrotech/lxc,caglar10ur/lxc,aeris/lxc,ysbnim/lxc,armcc/lxc,LynxChaus/lxc,hfuCN/lxc,hallyn/lxc,cjwatson/lxc,caglar10ur/lxc,ss1h2a3tw/lxc,GreatFruitOmsk/lxc,Distrotech/lxc,hallyn/lxc,hfuCN/lxc,Distrotech/lxc,tych0/lxc,hallyn/lxc,GreatFruitOmsk/lxc,LynxChaus/lxc,federicobriata/lxc,ysbnim/lxc,ss1h2a3tw/lxc,aeris/lxc,federicobriata/lxc,QingweiPeterLan/cs188-lxc,akshaykarle/lxc,tych0/lxc,federicobriata/lxc,armcc/lxc,akshaykarle/lxc,bostjan/lxc,cjwatson/lxc,bostjan/lxc