kernel: wifi: iwlwifi: mvm: don't set the MFP flag for the GTK

CVE-2024-27434 is a flaw in the Linux kernel’s iwlwifi driver related to handling Management Frame Protection MFP in certain Wi-Fi configurations. When connecting to an access point using TKIP as the group cipher, the driver incorrectly applies the MFP flag to the Group Temporal Key GTK, which is...