[WCNCR00154955] perf: Fix Tx path when Nss=1 and SpeIdxCtrl=2

[Description]
Fix Tx path when Nss=1 and SpeIdxCtrl=2

Change-Id: I686274f4746e50a971a3ed13c5df09ff04cce783
Signed-off-by: Yi-Cheng Huang <yi-cheng.huang@mediatek.com>
CR-Id: WCNCR00154955
Feature: perf
3 files changed