* cipher/camellia-aesni-avx2-amd64.h: Remove unnecessary vzeroupper
from function entry.
(enc_blk1_32, dec_blk1_32): New.
* cipher/camellia-glue.c (avx_burn_stack_depth)
(avx2_burn_stack_depth): Move outside of bulk functions to deduplicate.
(camellia_setkey): Disable AESNI & VAES implementation when GFNI
implementation is enabled.
(_gcry_camellia_aesni_avx2_enc_blk1_32)
(_gcry_camellia_aesni_avx2_dec_blk1_32)
(_gcry_camellia_vaes_avx2_enc_blk1_32)
(_gcry_camellia_vaes_avx2_dec_blk1_32)
(_gcry_camellia_gfni_avx2_enc_blk1_32)
(_gcry_camellia_gfni_avx2_dec_blk1_32, camellia_encrypt_blk1_32)
(camellia_decrypt_blk1_32): New.
(_gcry_camellia_ctr_enc, _gcry_camellia_cbc_dec, _gcry_camellia_cfb_dec)
(_gcry_camellia_ocb_crypt, _gcry_camellia_ocb_auth): Use new bulk
processing helpers from 'bulkhelp.h' and 'camellia_encrypt_blk1_32'
and 'camellia_decrypt_blk1_32' for partial parallel processing.