Description: BLE chip becomes unresponsive after continuous GATT write flooding attack during cybersecurity testing. After approximately 10 minutes of continuous GATT write attempts, the BLE stack enters a stuck state where advertising stops and new connections cannot be established. Recovery requires a Power-On Reset (POR). The stack should remain responsive during continuous GATT write attempts. Expected behavior is the device should disconnect, device should then continue advertising, and device remains responsive to new connections. Fuzz tester sends 0xFE for connection termination. This code is used for successfully terminating connection handover in the stack as well. Added a flag to indicate if connection handover was active, to properly interpret the incoming 0xFE code.