Move the open-coded aligned alloc in a separate file and use it in FIPS module

Move the open-coded aligned alloc in a separate file and use it in FIPS module

Factor the open-coded aligned allocation implementation in a separate
file and use it instead of just returning NULL in CRYPTO_aligned_alloc
implementation in the FIPS provider.

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)