IWL_RATE_MCS_4_INDEX
tbl->rate.index = IWL_RATE_MCS_4_INDEX;
{ -72, IWL_RATE_MCS_4_INDEX },
{ -80, IWL_RATE_MCS_4_INDEX },
{ -84, IWL_RATE_MCS_4_INDEX },
[IWL_RATE_MCS_4_INDEX] = IWL_RATE_24M_INDEX,
[IWL_RATE_MCS_4_INDEX] = "MCS4",