qcacld-3.0: Get the firmware capability NAN_VDEV_SUPPORT

Firmware advertises service capability bit NAN_VDEV_SUPPORT for
separate NAN vdev creation. This capability can be used to create
separate interface for NAN discovery and process corresponding
commands from userspace.

Change-Id: I45573c94ee2d966afc1e207c9eefc146ff43320f
CRs-Fixed: 2592019
4 files changed