The commit 574e4377fa ("mac80211: properly setup mesh interface") uses
the variable $wpa to decide whether encrypted meshpoint is requested by the
user or not. But the variable $wpa will only be set correctly after the
function wireless_vif_parse_encryption is called.
Fixes: 574e4377fa ("mac80211: properly setup mesh interface")
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>