cipher:kyber: Integrate into libgcrypt, adding glue code.
* cipher/kyber-common.c: Add copyright notice. * cipher/kyber-kdep.c: Likewise. * cipher/kyber.c: Likewise. * cipher/kyber-kdep.c: Add #undef to clear the definitions. * cipher/kyber.c: Integrate into libgcrypt, also allow standalone use.
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>