Add a QCA vendor subcommand QCA_NL80211_VENDOR_SUBCMD_CONFIG_TSPEC
to add and delete TSPEC in STA mode.
The attributes defined in enum qca_wlan_vendor_attr_config_tspec
are used to encapsulate required information.
Change-Id: Ifaba68b6619a3f6b775d2150740e7d6a2645493c
CRs-Fixed: 2686133