Add attr for gpu test
Add attr for gpu test

jnishi/chainer,ktnyt/chainer,sinhrks/chainer,cupy/cupy,chainer/chainer,okuta/chainer,chainer/chainer,chainer/chainer,laysakura/chainer,okuta/chainer,okuta/chainer,muupan/chainer,kuwa32/chainer,wkentaro/chainer,niboshi/chainer,benob/chainer,woodshop/chainer,cupy/cupy,jnishi/chainer,kashif/chainer,cemoody/chainer,wkentaro/chainer,keisuke-umezawa/chainer,kikusu/chainer,chainer/chainer,umitanuki/chainer,ktnyt/chainer,woodshop/complex-chainer,niboshi/chainer,hidenori-t/chainer,niboshi/chainer,keisuke-umezawa/chainer,tscohen/chainer,t-abe/chainer,delta2323/chainer,hvy/chainer,truongdq/chainer,sinhrks/chainer,niboshi/chainer,jnishi/chainer,benob/chainer,rezoo/chainer,ikasumi/chainer,cupy/cupy,tigerneil/chainer,hvy/chainer,keisuke-umezawa/chainer,masia02/chainer,AlpacaDB/chainer,kiyukuta/chainer,okuta/chainer,anaruse/chainer,sou81821/chainer,truongdq/chainer,wavelets/chainer,jnishi/chainer,AlpacaDB/chainer,Kaisuke5/chainer,kikusu/chainer,muupan/chainer,pfnet/chainer,ktnyt/chainer,keisuke-umezawa/chainer,t-abe/chainer,minhpqn/chainer,ronekko/chainer,1986ks/chainer,wkentaro/chainer,ytoyama/yans_chainer_hackathon,hvy/chainer,hvy/chainer,cupy/cupy,wkentaro/chainer,yanweifu/chainer,ysekky/chainer,aonotas/chainer,tkerola/chainer,ktnyt/chainer