iwlwifi: mvm: take the valid_{rx,tx}_ant from the TLV

This is the right source of information for the valid Tx
antennas, not the NVM.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 0d3c76b..2157b0f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -74,7 +74,7 @@
 static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
 {
 	u16 rx_chain;
-	u8 rx_ant = mvm->nvm_data->valid_rx_ant;
+	u8 rx_ant = iwl_fw_valid_rx_ant(mvm->fw);
 
 	rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS;
 	rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS;
@@ -115,7 +115,7 @@
 	u32 tx_ant;
 
 	mvm->scan_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, mvm->nvm_data->valid_tx_ant,
+		iwl_mvm_next_antenna(mvm, iwl_fw_valid_tx_ant(mvm->fw),
 				     mvm->scan_last_antenna_idx);
 	tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS;