changed size in cg2d_b.cu
changed size in cg2d_b.cu

mwiesenberger/feltor,rkube/feltor,feltor-dev/feltor,rkube/feltor,rkube/feltor,mwiesenberger/feltor,feltor-dev/feltor,mwiesenberger/feltor,mwiesenberger/feltor,feltor-dev/feltor,e3reiter/feltor,e3reiter/feltor,feltor-dev/feltor,e3reiter/feltor,e3reiter/feltor,e3reiter/feltor,rkube/feltor,rkube/feltor