generic: verify ciphertext with hardware-wrapped keys

generic: verify ciphertext with hardware-wrapped keys

Add two tests which verify that encrypted files are encrypted correctly
when a hardware-wrapped inline encryption key is used.  The two tests
are identical except that one uses FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64
and the other uses FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32.  These cover both
of the settings where hardware-wrapped keys may be used.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>