cipher/sha256: fix 'accessing 32 bytes in a region of size 4' warnings
* cipher/sha256.c (SHA256_CONTEXT): Replace h0-h7 with h[8]. (do_sha256_transform_amd64_ssse3, do_sha256_transform_amd64_avx) (do_sha256_transform_amd64_avx2, do_sha256_transform_intel_shaext) (do_sha256_transform_armv8_ce, do_sha256_transform_ppc8) (do_sha256_transform_ppc9, do_sha256_transform_s390x) (do_sha256_final_s390x, sha256_init, sha224_init) (do_transform_generic, sha256_final): Convert use of h0-h7 to h[0]-h[7].
GCC-11 gives following warning on sha256.c:
warning: 'func' accessing 32 bytes in a region of size 4
- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>