crypto/ec/ecp_nistz256.c: use OPENSSL_aligned_alloc_array
Allocate table in ecp_nistz256_windowed_mul() and preComputedTable
in ecp_nistz256_mult_precompute() using OPENSSL_aligned_alloc_array() call
instead of OPENSSL_malloc with a 64-byte slack and manual pointer alignment
adjustement.
Signed-off-by: Eugene Syromiatnikov <esyr@openssl.org> Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Saša Nedvědický <sashan@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28295)