ath9k: add ath_hw to ath_spec_scan_priv

spectral code mostly depends on ath_hw, not on ath_softc
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/init.c

@@ -351,6 +351,7 @@ static void ath9k_init_misc(struct ath_softc *sc)
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)
 		sc->ant_comb.count = ATH_ANT_DIV_COMB_INIT_COUNT;
 
+	sc->spec_priv.ah = sc->sc_ah;
 	sc->spec_priv.spec_config.enabled = 0;
 	sc->spec_priv.spec_config.short_repeat = true;
 	sc->spec_priv.spec_config.count = 8;

drivers/net/wireless/ath/ath9k/spectral.h

@@ -93,6 +93,7 @@ struct ath_ht20_40_fft_packet {
 } __packed;
 
 struct ath_spec_scan_priv {
+	struct ath_hw *ah;
 	/* relay(fs) channel for spectral scan */
 	struct rchan *rfs_chan_spec_scan;
 	enum spectral_mode spectral_mode;