Currently with CONFIG_WLAN_FEATURE_FILS set to n in Kbuild,
compilation issues are seen in the function hdd_save_gtk_params
due to usage of fils related structure without the compilation flag
checked.
Add new definition for the function hdd_save_gtk_params to fix
compilation issues with hdd_save_gtk_params set to n
Change-Id: Iab96c97df50f50c601ba52060440668373f74744
CRs-Fixed: 2111640