Allow to disable support for SE environment (LIBXSMM_SE=0).
Allow to disable support for SE environment (LIBXSMM_SE=0).

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