agent:kem: More fix for PQC KEM with X448.
* agent/pkdecrypt.c (struct ecc_params): Remove NAME_LEN field. (ecc_table): Update. (get_ecc_params): Use strcmp. (composite_pgp_kem_decrypt): Fix the call of gnupg_kem_combiner.
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>