Update PBKDF2 tests with GOST R 34.11-94 test cases
* tests/t-kdf.c (check_pbkdf2): Add MD_GOSTR3411_CP test cases.
TC26 (Technical Comitee for standardization "Cryptography and security
mechanisms") published a document with test vectors for PBKDF2 used
with GOST R 34.11-94 message digest function.
- Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>