libertas: remove some references to IW_MODE_abc

... in pursue to quaff the wide-spread references to WEXT constants.

When setting SNMP_MIB_OID_BSS_TYPE, wext.c can directly calculate the value
the firmware wants.

Reading of SNMP_MIB_OID_BSS_TYPE doesn't happen anywhere, so no need to
convert the firmware value into WEXT values anyway.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index 4ce554a..7510673 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -1567,7 +1567,8 @@
 	}
 
 	priv->mode = assoc_req->mode;
-	ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, assoc_req->mode);
+	ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE,
+		assoc_req->mode == IW_MODE_ADHOC ? 2 : 1);
 
 done:
 	lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);