PYSEC-2026-1535 LibOSDP RMAC revert to the beginning of the session

Issues: - SCS14 is allowed on encrypted connection osdpphy.c - No validation for RMACI is only in response to osdpSCRYPT osdpcp.c - Couldn't find anything specific in the OSDP specifications indicating it is forbidden, I'm gussing it shouldn't be allowed according from the secure connection...