qcacld-3.0: Route the legacy NAN commands through NAN component

NAN component has been moved to CLD. It includes implementation
of the new NAN command QCA_NL80211_VENDOR_SUBCMD_NAN_EXT.
Change the legacy NAN implementation of vendor cmd
QCA_NL80211_VENDOR_SUBCMD_NAN so that the requests go
through the NAN component. Clean up the legacy path.
Functionality remains unchanged for legacy command.

Route the legacy NAN commands through the NAN component.

Change-Id: I542e5afe832619f8c088220cc4456aa7fe4416fd
CRs-Fixed: 2356772
15 files changed