Copied winograd stuff from master..
Copied winograd stuff from master..

hfp/libxsmm,hfp/libxsmm,egeor/libxsmm,egeor/libxsmm,egeor/libxsmm,hfp/libxsmm,egeor/libxsmm,egeor/libxsmm,hfp/libxsmm,egeor/libxsmm,hfp/libxsmm,hfp/libxsmm