ARM: at91/defconfig: cleanup for bt config

Cleanup for BT config.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>

Author: claudiubeznea

arch/arm/configs/at91_dt_defconfig

@@ -57,16 +57,9 @@ CONFIG_BT_BNEP_PROTO_FILTER=y
 CONFIG_BT_HIDP=y
 CONFIG_BT_HCIBTUSB=y
 CONFIG_BT_HCIUART=y
-CONFIG_BT_HCIUART_NOKIA=y
-CONFIG_BT_HCIUART_BCSP=y
-CONFIG_BT_HCIUART_ATH3K=y
-CONFIG_BT_HCIUART_LL=y
+CONFIG_BT_HCIUART_H4=y
 CONFIG_BT_HCIUART_3WIRE=y
-CONFIG_BT_HCIUART_INTEL=y
-CONFIG_BT_HCIUART_BCM=y
-CONFIG_BT_HCIUART_QCA=y
-CONFIG_BT_HCIUART_AG6XX=y
-CONFIG_BT_HCIUART_MRVL=y
+CONFIG_BT_HCIBTUART=y
 CONFIG_BT_HCIVHCI=y
 CONFIG_CFG80211=y
 # CONFIG_CFG80211_DEFAULT_PS is not set