Function parse_lock_config_zone 

pub fn parse_lock_config_zone(payload: &[u8]) -> Result<u16, PayloadError>

Parse the payload of CommandOpcode::LockConfigZone.

Layout: magic (4) || crc (2 LE). Returns the CRC if the magic matches. The CRC is the CRC-16 of the chip’s current 128-byte configuration zone, computed by the host CLI just before sending.

Errors

• PayloadError::WrongLen if the payload is not exactly 6 bytes.
• PayloadError::MagicMismatch if the first 4 bytes are not LOCK_CONFIG_MAGIC.