Document hostapd ft_over_ds configuration parameter

This had been forgotten from hostapd.conf.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

hostapd/hostapd.conf

@@ -1249,6 +1249,11 @@ own_ip_addr=127.0.0.1
 # 1 = push PMK-R1 to all configured R1KHs whenever a new PMK-R0 is derived
 #pmk_r1_push=1
 
+# Whether to enable FT-over-DS
+# 0 = FT-over-DS disabled
+# 1 = FT-over-DS enabled (default)
+#ft_over_ds=1
+
 ##### Neighbor table ##########################################################
 # Maximum number of entries kept in AP table (either for neigbor table or for
 # detecting Overlapping Legacy BSS Condition). The oldest entry will be