IWM_FW_PHY_CFG_RX_CHAIN_POS
IWM_FW_PHY_CFG_RX_CHAIN_POS;
valid_rx_ant << IWM_FW_PHY_CFG_RX_CHAIN_POS;
#define IWM_FW_PHY_CFG_RX_CHAIN (0xf << IWM_FW_PHY_CFG_RX_CHAIN_POS)