xtest: regression 8000: add PBKDF2 tests

Add the PBKDF2 key derivation tests based on SHA224, SHA256, SHA384,
SHA512 and SM3.

Signed-off-by: zhaozheng7 <zhaozheng96@outlook.com>
Acked-by: Jerome Forissier <jerome.forissier@arm.com>

Author: zhaozheng7