These drivers are using the wrong IFM_ macro check for IFM_AUTO.

I am a bit swamped right now and would appreciate help with tests
on iwn/iwm/iwx. Nothing should change or break.

diff /usr/src
commit - d76fc145fd1843e077ff55bc476a2b23592607fe
path + /usr/src
blob - f0977cd84e8a242c89edc4110e30e3b8db3cd310
file + sys/dev/pci/if_iwm.c
--- sys/dev/pci/if_iwm.c
+++ sys/dev/pci/if_iwm.c
@@ -8534,7 +8534,7 @@ iwm_scan(struct iwm_softc *sc)
 	 * The current mode might have been fixed during association.
 	 * Ensure all channels get scanned.
 	 */
-	if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
+	if (IFM_SUBTYPE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
 		ieee80211_setmode(ic, IEEE80211_MODE_AUTO);
 
 	sc->sc_flags |= IWM_FLAG_SCANNING;
blob - 69ecb242154be09f6ea83656d6e30170703bfd2b
file + sys/dev/pci/if_iwn.c
--- sys/dev/pci/if_iwn.c
+++ sys/dev/pci/if_iwn.c
@@ -5359,7 +5359,7 @@ iwn_scan(struct iwn_softc *sc, uint16_t flags, int bgs
 		 * The current mode might have been fixed during association.
 		 * Ensure all channels get scanned.
 		 */
-		if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
+		if (IFM_SUBTYPE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
 			ieee80211_setmode(ic, IEEE80211_MODE_AUTO);
 
 		sc->sc_flags |= IWN_FLAG_SCANNING;
blob - 4b945edf2c73c6e2582819b283277baff81a6586
file + sys/dev/pci/if_iwx.c
--- sys/dev/pci/if_iwx.c
+++ sys/dev/pci/if_iwx.c
@@ -7529,7 +7529,7 @@ iwx_scan(struct iwx_softc *sc)
 	 * The current mode might have been fixed during association.
 	 * Ensure all channels get scanned.
 	 */
-	if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
+	if (IFM_SUBTYPE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
 		ieee80211_setmode(ic, IEEE80211_MODE_AUTO);
 
 	sc->sc_flags |= IWX_FLAG_SCANNING;