evp/e_aes.c: populate HWAES_* to remaning modes.

Submitted by: Ard Biesheuvel.
Free up s->d1->buffered_app_data.q properly.

PR#3286
Check there is enough room for extension.
Corrected OPENSSL_NO_EC_NISTP_64_GCC_128 usage in ec_lcl.h. PR#3370
evp/e_aes.c: add erroneously omitted break;
aesp8-ppc.pl: fix typos.