Ondrej Kozina authored Mar 08, 2018 and Milan Broz committed Mar 05, 2019

rename sector_start -> iv_start (it's now a iv shift for subsequent
en/decrypt operations)

rename count -> length. We accept length in bytes now and perform sanity
checks at the crypt_storage_init and crypt_storage_decrypt (or encrypt)
respectively.

rename sector -> offset. It's in bytes as well. Sanity checks inside
crypt_storage functions.