ARM: at91/defconfig: disable CONFIG_CFG80211_DEFAULT_PS

Wilc3000 doesn't handle Power Save mode by default so we must
disable CONFIG_CFG80211_DEFAULT_PS and enable PS manually
if needed.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[claudiu.beznea@microchip.com: adpat to at91_dt_defconfig]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>

Author: noglitch

arch/arm/configs/at91_dt_defconfig

@@ -42,6 +42,7 @@ CONFIG_IPV6_SIT_6RD=y
 CONFIG_CAN=y
 CONFIG_CAN_AT91=y
 CONFIG_CFG80211=y
+# CONFIG_CFG80211_DEFAULT_PS is not set
 CONFIG_MAC80211=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y