Calculated block number for MIFARE Classic 4k cards incorrect.

[asib]

MIFARE Classic 4k cards have a different memory structure to 1k cards:

• In 1k cards, all sectors are 4 blocks.
• In 4k cards, the first 32 sectors are 4 blocks, but the last 8 are 16 blocks.

This is just a fix so that the two block numbers calculated by the script are correct if the card is a 4k card.

See §2.2 of this paper for details.

[doegox]

thank you!