templates: Add mips hostarch detection to debian
templates: Add mips hostarch detection to debian

Signed-off-by: James Cowgill <f66e7ad54d2bc9aacd859b0aa0211dc0ef9337f5@cowgill.org.uk>

cjwatson/lxc,hallyn/lxc,ss1h2a3tw/lxc,hallyn/lxc,aeris/lxc,GreatFruitOmsk/lxc,cjwatson/lxc,hfuCN/lxc,LynxChaus/lxc,GreatFruitOmsk/lxc,cjwatson/lxc,caglar10ur/lxc,aeris/lxc,ysbnim/lxc,federicobriata/lxc,GreatFruitOmsk/lxc,hallyn/lxc,hfuCN/lxc,caglar10ur/lxc,thmo/lxc,aeris/lxc,thmo/lxc,hfuCN/lxc,thmo/lxc,terceiro/lxc,ysbnim/lxc,federicobriata/lxc,terceiro/lxc,LynxChaus/lxc,ss1h2a3tw/lxc,ysbnim/lxc,terceiro/lxc,caglar10ur/lxc,federicobriata/lxc,ss1h2a3tw/lxc,LynxChaus/lxc