Bluetooth: Enable 6LoWPAN support for BT LE devices

This is initial version of
http://tools.ietf.org/html/draft-ietf-6lo-btle-00

By default the 6LoWPAN support is not activated and user
needs to tweak /sys/kernel/debug/bluetooth/hci0/6lowpan
file.

The kernel needs IPv6 support before 6LoWPAN is usable.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 6a791e7..cc6827e 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -10,6 +10,10 @@
 
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
 	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
-	a2mp.o amp.o
+	a2mp.o amp.o 6lowpan.o
+
+ifeq ($(CONFIG_IEEE802154_6LOWPAN),)
+  bluetooth-y +=  ../ieee802154/6lowpan_iphc.o
+endif
 
 subdir-ccflags-y += -D__CHECK_ENDIAN__