Bluetooth: Introduce BT_BREDR and BT_LE config options

The current kernel options do not make it clear which modules are for
Bluetooth Classic (BR/EDR) and which are for Bluetooth Low Energy (LE).

To make it really clear, introduce BT_BREDR and BT_LE options with
proper dependencies into the different modules. Both new options
default to y to not create a regression with previous kernel config
files.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

net/bluetooth/bnep/Kconfig

@@ -1,6 +1,6 @@
 config BT_BNEP
 	tristate "BNEP protocol support"
-	depends on BT
+	depends on BT_BREDR
 	select CRC32
 	help
 	  BNEP (Bluetooth Network Encapsulation Protocol) is Ethernet