CVE-2026-5818 MCU Firmware Update Authentication Bypass on Caliptra Core

Incorrect check of function return value in Caliptra Core Runtime Firmware ActivateFirmwareCmd::activatefw modules allows bypass of Caliptra Core's verification of the MCU FW during a hitless update. This issue affects Core Runtime Firmware: from 2.0.0 through 2.0.1, 2.1.0...