hostapd: add default value to eapol_version (#20641)

r46861 introduced a new option eapol_version to hostapd, but did not
provide a default value. When the option value is evaluated,
the non-existing value causes errors to the systen log:
"netifd: radio0: sh: out of range"

Add a no-op default value 0 for eapol_version. Only values 1 or 2 are
actually passed on, so 0 will not change the default action in hostapd.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

SVN-Revision: 47361

package/network/services/hostapd/files/netifd.sh

@@ -194,6 +194,7 @@ hostapd_set_bss_options() {
 	set_default hidden 0
 	set_default wmm 1
 	set_default uapsd 1
+	set_default eapol_version 0
 
 	append bss_conf "ctrl_interface=/var/run/hostapd"
 	if [ "$isolate" -gt 0 ]; then