Add VTS tests to RTT impact of support of 11ax

This commit adds missing VTS tests for the support of 80211ax and its
impact to RTT.

Bug: 139354972
Test: atest VtsHalWifiApV1_4TargetTest
Change-Id: Ib13b65b5b76d1d940ac784a4a3b4899af88e541a
3 files changed