ath10k: enable gtk offload for the wcn3990 wlan module

Register ops to store the gtk rekey data from the wlan
utility(wpa_supplicant) and configure the GTK offload
during wow suspend.

If the wlan module in suspend state with wowlan mode
this feature adds support to prevent the device to wakeup
from sleep state on gtk rekey failure in wlan firmware.

CRs-Fixed: 2150959
Change-Id: I968acfe65bd082d37c855f89d4460a09c055ffd8
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>