Change buf_cpy and buf_xor* functions to use buf_put/buf_get helpers
* cipher/bufhelp.h (BUFHELP_FAST_UNALIGNED_ACCESS) (bufhelp_int_s, buf_xor_1): Remove. (buf_cpy, buf_xor, buf_xor_2dst, buf_xor_n_copy_2): Use buf_put/buf_get helpers to handle unaligned memory accesses.
- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>