'hecap_info_internal' has been added to indicate support for 11ax proprietary PHY features: 400ns SGI support in 1X/2X LTF and 2X LTF support in 160/80+80MHz modes. Added the corresponding peer assoc and service ready parameter. Change-Id: I34ead9278d8d84ecbc5525867f1584f8c8a4d7b8 CRs-fixed: 2414163