brcmfmac: simplify mapping of auth type

The 802.11 standard only has four valid auth type configurations of which
our firmware only supports two, ie. Open System and Shared Key. Simplify
the mapping falling back to automatic for other types specified by
user-space.
Reviewed-by: NArend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: NHante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c

@@ -1595,15 +1595,9 @@ static s32 brcmf_set_auth_type(struct net_device *ndev,
 		val = 1;
 		brcmf_dbg(CONN, "shared key\n");
 		break;
-	case NL80211_AUTHTYPE_AUTOMATIC:
-		val = 2;
-		brcmf_dbg(CONN, "automatic\n");
-		break;
-	case NL80211_AUTHTYPE_NETWORK_EAP:
-		brcmf_dbg(CONN, "network eap\n");
 	default:
 		val = 2;
-		brcmf_err("invalid auth type (%d)\n", sme->auth_type);
+		brcmf_dbg(CONN, "automatic, auth type (%d)\n", sme->auth_type);
 		break;
 	}