16ee478f13
This is in preparation for exposing configuring STBC flags up to ifconfig so STBC TX/RX can be configured at runtime. * Set the FHT_STBC flags for TX/RX if the HT capabilitiex exist * Clear the RX STBC HT capability flag when creating a HTCAP IE, so we only announce it if it's configured in the FHT flags. Tested: * AR9331 (carambola2), AP/STA modes