drivers/ieee802154: move ieee802154 drivers to net folder

The IEEE 802.15.4 standard represents a networking protocol. I don't
exactly know why drivers for this protocol are stored into the root
'driver' folder, but better will be to store them with other
networking stuff. Currently there are only 3 drivers available for
IEEE 802.15.4 stack, so lets do it now with the smallest overhead.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 0c2bd80..707ab7b 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -107,8 +107,6 @@
 	  or internal device.  It is safe to say Y or M here even if your
 	  ethernet card lacks MII.
 
-source "drivers/ieee802154/Kconfig"
-
 config IFB
 	tristate "Intermediate Functional Block support"
 	depends on NET_CLS_ACT
@@ -290,6 +288,8 @@
 
 source "drivers/net/wan/Kconfig"
 
+source "drivers/net/ieee802154/Kconfig"
+
 config XEN_NETDEV_FRONTEND
 	tristate "Xen network device frontend driver"
 	depends on XEN