Add new ini "enable_twt_24ghz" to enable/disable host triggered
TWT in 2.4Ghz connection. Check this ini value in TWT get
capability. The userspace will query the self capability before
triggering the host TWT.
Change-Id: I3544de89f438fc526f8a2554c6aeebcd25d6c415
CRs-Fixed: 2904775